urn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f8249 2017-07-14T05:02:47-06:00 SparkFun Electronics Customer #34440 urn:uuid:67167259-e35e-1640-a0bc-e35c001bec80 2017-06-12T13:43:32-06:00 <p>I downloaded the bootloader from github, but it doesn&rsquo;t build with the latest (1.8.2) Arduino toolchain. I&rsquo;ve modified the paths in the Makefile but some fields in drivers/cdc_enumerate.c don&rsquo;t quite match up. It looks like you guys started with an old version of the Atmel bootloader code and then modified it. I think I can modify your cdc_enumerate.c with the code from the latest Atmel AT07175, but it might be easier to just go back to the Arduino toolchain you originally built this with. Do you remember which version of the toolchain you used?</p> ErieRider urn:uuid:ffd7d620-9e1a-bbaf-bc04-bcd72198470a 2017-05-01T20:20:07-06:00 <p>I purchased this mini-breakout for the SAMD21 to determine if I can use it as basis of a development board for my embedded systems class. Since I want students to purchase the parts and assemble their own boards, I need them to use a Bootloader, not purchase their own Atmel ICE (they will use the department ICE once to flash the Bootloader). I ran into a lot of problems making this happen that I want to share with you so that you might not have to struggle as I did. <em>First, the SAM-BA 2.16 utility in <strong>its current configuration is not usable, at all</strong> because it only allows you to flash .bin files starting at address 0x6000. Meanwhile, the bootloader you flash to the SAMD21 (with your ICE) assumes that the user program starts at address 0x1000 or 0x2000 depending on which you flash. You need to get yourself the SAM-BA 2.15 utility which Lars over at AVR freak generously uploaded <a href="http://community.atmel.com/forum/sam-ba-216-samd21g16a-bootloader-issue" rel="nofollow" >here</a>. </em>Second, since the SAM-BA 2.15 utility only allows you to flash a user program starting at address 0x2000, you will need to flash the USART/USB combined bootloader onto your SAMD21 using the ICE. This combined bootloader assumes that user program will be flashed to address 0x2000. <em>Third, in Atmel Studio you will need to compile your code so that it targets address 0x2000. To do this select Project -> Options -> Toolchain -> ARM/GNU Linker -> Miscellaneous and add: * -Wl,&ndash;section-start=.text=0x2000</em> at the end of the Linker Flags list. *Fourth, you need to ground out &ldquo;pin 5&rdquo; on the SAMD21 breakout when pressing the reset button. This will boot the SAMD21 into bootloader mode allowing the SAM-BA 2.15 utility to talk to the SAMD21 bootloader. I am probably forgetting several things, but this list should save you several hours. If you know of a version of the SAM-BA 2.15 or 2.16 utility that allows a user to flash to address 0x1000, I would be much obliged if you would provide a link. I hate wasting the 0x1000 bytes of memory on a kludge, but I am not in the mood to recompile the SAM-BA utility.</p> TomKeddie urn:uuid:05fdf322-0a45-7c9e-86a2-d171e1cc8a2c 2017-05-01T11:49:30-06:00 <p>I added support to the Microsoft UF2 booloader for this board. See https://github.com/Microsoft/uf2-samd21 and https://github.com/Microsoft/uf2-samd21/pull/17.</p> <blockquote><p>This repository contains a bootloader, derived from Atmel&rsquo;s SAM-BA, which in addition to the USB CDC (serial) protocol, also supports the USB MSC (mass storage).</p></blockquote> <p>You can build it with make BOARD=sparkfun-samd21-mini</p> Customer #131429 urn:uuid:58e10295-1698-63cd-da88-4b88349e572b 2017-04-12T06:16:24-06:00 <p> I tried Standby Mode using Arduino RTCZero library. I have also removed the Power LED and supplies 3.3V directly at 3.3V pin (by passing LDO). I’m getting current in range of 300uA. Considering ATsamD21 can go down to 10uA this is too much current drawn!!</p> <p>Not sure if its due to Hardware of <strong>Sparkfun board</strong> or the <strong>Arduino RTCZero Library</strong></p> Customer #131429 urn:uuid:4e895f04-f6d5-32e3-e084-002a5d7e40e0 2017-04-12T06:02:35-06:00 <p>Hi All, I tried <strong>Standby Mode</strong> using <a href="https://www.arduino.cc/en/Tutorial/SleepRTCAlarm" rel="nofollow" >this</a> <strong>RTCZero</strong> library. I have also <strong>removed</strong> the <strong>Power LED</strong> and supplies <strong>3.3V directly at 3.3V pin</strong> (by passing LDO). I&rsquo;m getting current in range of <strong>300uA</strong> which is Okayish.. considering ATsamD21 can go down to <strong>10uA</strong>. Can someone suggest what else I can try?</p> <ol> <li>Is this due to Hardware of <strong>Sparkfun board</strong>?</li> <li>Is there something can be done in <strong>RTCzero library</strong> to decrease <strong>Stand by Current</strong></li> </ol> <p>Please advice..</p> Drew Folta urn:uuid:495b38d4-072c-c37e-4d2e-6807d5a17695 2017-04-09T11:58:41-06:00 <p>The RTCZero standbyMode() actually puts the device into standby mode (also known as deep sleep). Here&rsquo;s its implementation: https://github.com/arduino-libraries/RTCZero/blob/c481302b6812a139d59eeb5da7d2a4cc4eefa73d/src/RTCZero.cpp#L133 For my project I have both TC4 and TC5 configured with RUNSTDBY so that they continue running during standby. Section 15.6.2.8 of the SAM D21 datasheet has lots of details.</p> KimLorentz urn:uuid:3ef4b5ee-f657-a7ad-115b-9583e973f9c7 2017-04-09T10:21:01-06:00 <p>Whats the code for sleep mode? I need help for standby and sleep mode.</p> KimLorentz urn:uuid:35865685-64d7-a7f5-62f9-5c6ec443ce3e 2017-04-09T10:14:15-06:00 <p>Does anyone have ann code for standby and sleep mode? I got the standby to work, but not able to og to sleep mode.</p> <p>My Projects needs the sleep mode current to be low.</p> Mirmathrax urn:uuid:16a77ee2-7ae3-ff0e-27bd-366ceeb009a8 2016-12-01T16:02:25-07:00 <p>I just bought this mini breakout and I need to run 6 analog devices on it (4 gas sensors and 2 photocells). The specifications say there are 14 ADC lines, but the board only has A0 - A3 labelled. How do I get access to the other ADC lines? Where are they physically on the board and how do I reference them in the Arduino IDE? Thanks!</p> Bunk urn:uuid:1e581eac-c052-fe0a-ac04-06ff06073470 2016-10-20T22:06:57-06:00 <p>I am trying to write a program for this using atmel studio but the program never seems to start. I am uploading it by taking the .bin file atmel studio generates and using bossac. If i generate the bin file with the Arduino IDE, it works so theres some initialization I&rsquo;m missing. Is there some startup code I need to setup?</p> <p>Here is the program I am trying to run:</p> <pre><code>int main(void){ SystemInit(); REG_PORT_DIR0 |= PORT_PA17; REG_PORT_OUT0 |= PORT_PA17; while (1){} } </code></pre> Customer #32186 urn:uuid:9ce5f198-3961-9994-7c83-10f407c1d0eb 2016-08-11T09:46:25-06:00 <p>Adding a 10uF to GND on the reset pin fixes the problem. This seems like a bit of a band-aid though, since the SAMD21 includes a fairly sophisticated power-on reset of it&rsquo;s own. I&rsquo;m guessing there is something a bit funny going on in the startup code in the bootloader. Will look into it later when we attempt to customize it.</p> Customer #32186 urn:uuid:e5398647-2580-d8d4-7df7-49776979b84c 2016-08-11T05:34:08-06:00 <p>Love the board! We&rsquo;re using a bunch of them in a project for a lab here. We&rsquo;d like to customize the bootloader as we have the boards on a shared serial bus and would like to be able to add some sort of addressing scheme.</p> <p>I&rsquo;d prefer not to buy IAR tools. I notice the stock Arduino Zero bootloader can be built with gcc/make. Can the customized sparkfun one be built successfully with open-source tools? Or, is there a list of patches against the Arduino Zero one?</p> <p>We can sort this all out ourselves given time (and eager students) but if you guys have any suggestions it would be great.</p> Customer #32186 urn:uuid:02d4a30d-b7e9-9a08-70d6-fae80dd3e855 2016-08-10T08:44:56-06:00 <p>The power-up reset doesn&rsquo;t seem to work. Is this expected? If we download a simple blinky light sketch it runs as expected if the USB cable is connected. If we power the board using 5V on VIN the sketch doesn&rsquo;t start unless the reset button is pressed.</p> Customer #817969 urn:uuid:90507fb8-e776-f296-3722-67f9b8d4d7ea 2016-08-01T07:13:48-06:00 <p>Hi!How can I upload an Exported bin sketch (from Arduino IDE ) to the SAMD21 mini ?</p> <p>I have Atmel Studio 7 and the Atmel Ice?Is there any particular setting ?</p> kapurar urn:uuid:28762a4a-6fb5-c62a-41ab-2c569b3a7214 2016-07-15T10:45:58-06:00 <p>FreeRTOS</p> <p>How easy is it to run FreeRTOS on this or the FreeRTOS port that was ported to arduino on this? Does anyone have any experience?</p> Albert van Dalen urn:uuid:6665c666-6e01-0734-f50d-ac114e62746b 2016-05-03T01:44:24-06:00 <p>Downloading programs to the Mini Breakout was going very slowly, unlike my Arduino Zero. I&rsquo;ve updated the boot loader and now the Mini Breakout downloads fast. (I can program a boot loader into a SAM D21 myself with a modified Arduino Zero board)</p> PICDude urn:uuid:ec5010c0-9b6a-1440-505a-dd7c284a1da6 2016-04-29T09:03:07-06:00 <p>Ah! Got it, must have been looking at the wrong file&hellip;</p> <p>Is it possible to re-map the Serial0 UART to any of the other available pins to allow two hardware UARTs and SPI/I2C? (realizing that this reduces available pins pretty far!)</p> Jimb0 urn:uuid:8012c377-5a2d-86c4-1466-dd1f59063b59 2016-04-29T08:32:50-06:00 <p>Yup, it&rsquo;s just a few-line change <a href="https://github.com/sparkfun/Arduino_Boards/blob/master/sparkfun/samd/variants/SparkFun_SAMD_Mini/variant.h#L130" rel="nofollow" >here in Variants.h</a>.</p> PICDude urn:uuid:8c2d40d1-0dba-ca9a-c5b8-41283a387572 2016-04-29T07:41:04-06:00 <p>Cool news!</p> <p>I was looking though the &ldquo;variant&rdquo; files for the SAMD21 mini breakout and I can&rsquo;t see where the re-mapping was done (it all appeared to be Zero defaults). Can you show us how the remap was done?</p> <p>Maybe I&rsquo;m looking at the wrong package&hellip;</p> Drew Folta urn:uuid:079371fb-11aa-ab85-b2a9-bf9f27460af8 2016-03-01T11:48:57-07:00 <p>Makes sense. The trick with this product is that it&rsquo;s not an arduino zero clone (the pins and sercoms are slightly different) so platformio might have a little trouble incorporating it. Regardless, it&rsquo;s up to them to figure this out :) (Hopefully they have a tool to generate their configs from the arduino boards json.)</p> M-Short urn:uuid:6566a147-37c1-56b4-4a3d-4f6693c6cac9 2016-03-01T09:03:31-07:00 <p>As far as I know we&rsquo;ve never worked with these guys or heard of them, so any additions will not be coming from us. That being said, their site says it supports both Arduino and Atmel Sam chips. I haven&rsquo;t dug deep into that to figure out exactly what that means, but this is basically an Arduino Zero and uses an Atmel SamD21 chip, so you might be able to get it to work as is.</p> Drew Folta urn:uuid:ec2ad9db-eb8f-ba99-8a4a-33a337674f9a 2016-02-29T19:27:24-07:00 <p>Is there any plan to add this to platformio? It looks like the following file will need to be updated: https://github.com/platformio/platformio/blob/develop/platformio/boards/sparkfun.json (Hmmm&hellip; it&rsquo;s probably more complicated than just updating that file&hellip;)</p> arzaman urn:uuid:fe68ba64-d005-205b-496a-76ef05eceb59 2016-02-09T15:40:44-07:00 <p>does anyone working with this mini breakout or arduino zero succeed in interfacing with low cost 0,96" or 1,3" OLED display in any combination of driver SSD1306 or SH1106 and with any graphic libraries</p> <p>thanks Davide</p> arzaman urn:uuid:38b19374-b857-9212-bbf3-b7fc97bf03a7 2016-02-04T15:39:21-07:00 <p>Thanks for suggestion but I was looking more to a library components for eagle schematic and footprint for pcb I&rsquo;m integrating breakout in a circuit and eagle library of the breakout helps me</p> Toni_K urn:uuid:926978fe-fde5-8e82-94fb-0a91f1172ab2 2016-02-03T09:40:34-07:00 <p>You can actually find all of the Eagle parts for this board in the temp library in the product repository <a href="https://github.com/sparkfun/SAMD21_Mini_Breakout/tree/master/Hardware" rel="nofollow" >here</a>.</p> arzaman urn:uuid:37aaf398-6558-5129-1d83-6f95206b67ef 2016-02-03T04:53:48-07:00 <p>Does anyone has a good Eagle library (.lbr) file for this nice breakout ? thanks Davide</p> KimLorentz urn:uuid:e4a85a24-2c01-aae5-2e39-6f9a60fedbe4 2016-01-03T06:33:10-07:00 <p>This mini breakout board is small and powerfull. Love using it.</p> <p>As a note I edit the variant files on the sparkfun board to give me Serial 2 and Serial 3. Dont need them right now but good to have. I have tested these Serials and thay are working.</p> <p>All info can be found on Sparkfun Forum. Link: https://forum.sparkfun.com/viewtopic.php?f=32&amp;t=42698&amp;p=186984&amp;hilit=SAMD21+Serial2#p186984</p> Customer #230150 urn:uuid:340e9ad7-f9c2-5cc1-bf79-3cce110830fd 2015-12-10T12:29:30-07:00 <p>Nice little board but, increasingly, I find that such low pin count devices are becoming less and less useful for my projects especially with all the pin sharing current microcontrollers do. By the time you use a few of the on-board peripherals you end up with very few/no GPIOs. Teensy 3.2, the Pro Mini, this board all fall into this category. I love Teensy because of it&rsquo;s M4 processor but the board layout/pinout is a challenge.</p> <p>Anyway I&rsquo;d find this board much more attractive if it used a ATSAMD21J18 and was lengthened to accommodate the additional pins (8 per side). The 16 additional I/O&rsquo;s would make it much more flexible and useful for a larger number of projects. Is there a marketing reason backed up by actual data that says you have to stick to so close to the Pro Micro /Teensy form factor ?</p> Customer #749535 urn:uuid:ac39824d-2c0d-38a4-832d-ae4037ec0119 2015-12-09T18:50:54-07:00 <p>Including the LiPo charger would be great! +1 to that suggestion :)</p> Pathogen-David urn:uuid:a68d4be6-0a41-541e-8e7e-9df86d2024f5 2015-11-30T10:57:50-07:00 <p>In the graphical datasheet, PA14 is marked as I2C-capable. However, the Atmel datasheet does not mark this pin as I2C-capable. (It seems no PAD2 or PAD3 pins are I2C capable, actually.)</p> Drew Folta urn:uuid:f6fc5112-9c38-c592-0438-c82e73017408 2015-11-27T21:22:51-07:00 <p>I did some playing around. With the power LED, <code>SerialUSB.begin(9600)</code>, and <code>attachInterrupt(9, cb, HIGH)</code> I saw about 17.1mA. When I then use that interrupt handler to turn on the builtin LED (arduino pin 13) I saw about 20.3mA.</p> <p>I then added <code>EIC-&gt;WAKEUP.bit.WAKEUPEN7 = 1</code> so that arduino pin 9 could wake the device from deepsleep. I also used a copy of <code>standbyMode()</code> from RTCZero library for putting the device to sleep. With all that I got the device to sleep then wakeup when pin 9 went high. Otherwise same setup as above, and with the builtin LED off I saw about 8.3mA and about 11.6mA with it on.</p> <p>Then I cut SJ1 on the back to disconnect the power LED. While sleeping, I saw about 1.3mA with the builtin LED off and about 4.8mA with it on.</p> <p>Interpretations. Looks like the builtin LED uses about 3.2mA and the power LED uses about 7mA. Looking at the SAM-D21 datasheet it looks like deepsleep could be made more efficient by turning off or slowing down the peripheral clocks, but at 1.3mA I&rsquo;m super happy and likely won&rsquo;t bother with that.</p> <p>Major caveats: I&rsquo;m a beginner. My multimeter is cheap and likely not very accurate. BTW, I had trouble waking the device from sleep to program it, so I wired in a second digital pin to disable sleep :)</p> Customer #225064 urn:uuid:db164b6b-a88f-1d4f-df3f-4bff420b9fe9 2015-11-26T00:25:04-07:00 <p>The correct form is: analogReference(AR_EXTERNAL); There needs to be an AR_ prefix attached to the various analog reference modes.</p> Customer #225064 urn:uuid:ee39c4bf-e816-714e-5914-17f07dc06d61 2015-11-25T19:00:48-07:00 <p>Does this board support an external analog reference when using the Arduino IDE? When I try the following: analogReference(EXTERNAL); I get an error: &ldquo;invalid conversion from &lsquo;int&rsquo; to &lsquo;eAnalogReference&rdquo;</p> Jimb0 urn:uuid:72889c03-f64d-5783-a662-a39f16fd282a 2015-11-25T09:15:37-07:00 <p>Correct on all fronts. This board doesn&rsquo;t break out the default Arduino SPI pins (those on what would be the ICSP header of an Arduino Uno). Instead the SPI port is mapped to pins 10-13 (SS, MOSI, MISO, and SCK, respectively).</p> <p>PB22 and PB23 are also not available, and the pin 0/1 RX and TX are assigned to the <code>Serial1</code> object.</p> PICDude urn:uuid:46b6c435-8f6f-39a0-4323-859da126fe48 2015-11-25T08:53:28-07:00 <p>Ordered two of these, and although I&rsquo;m not 100% sure, it looks like the SPI port that is implemented is not the default one that is used by the Arduino IDE.</p> <p>The Zero schematic suggests that the SPI port on pins: PB10, PB11 and PA12 is the default. Perhaps someone can confirm?</p> <p>Also, the RX/TX map to what is essentially the &ldquo;second&rdquo; serial port; SERIAL1. PB22 and PB23 are the default SERIAL0. The schematic suggests that SERIAL0 is connected to the EDBG header, but it&rsquo;s not clear which pins would be used.</p> Jimb0 urn:uuid:b50d86e2-cd5c-5677-198d-7f05d66a1304 2015-11-24T12:00:02-07:00 <p>Our Arduino board definition for the Mini Breakout assigns SPI to pins 10-13 &ndash; similar to the signal pinout on ATmega328-based Arduinos (10=SS, 11=MOSI, 12=MISO, 13=SCK).</p> Jimb0 urn:uuid:33e64fc1-c04a-f6e2-24e7-fe8122293352 2015-11-24T10:26:13-07:00 <p>The SPI port doesn&rsquo;t default to pins 10-13 on the SAMD Mini like it does on the Arduino Pro Mini &ndash; that&rsquo;s probably what&rsquo;s causing the issues. Luckily there is an unused SERCOM port on those pins, so we should be able to make it work.</p> <p>We&rsquo;ve released an updated Arduino board package which adds an additional board definition for the Mini boards, equipping them with SPI on pins 10-13. If you go to your Arduino Board Manager, and click &ldquo;Update&rdquo; on the &ldquo;SparkFun SAMD Boards&rdquo; package (you may have to open and close the Board Manager twice), that should add the extra &ldquo;SparkFun SAMD21 Mini Breakout&rdquo; option on the boards menu. Try uploading with that board selected &ndash; seems to be working for me with an SD card.</p> Jimb0 urn:uuid:fbcd13be-e1d9-905f-09c9-277dd55df5bc 2015-11-23T11:17:14-07:00 <p>The debug header is 0.05"-pitch. <a href="https://learn.sparkfun.com/tutorials/samd21-minidev-breakout-hookup-guide/samd21-mini-breakout-overview#debug" rel="nofollow" >This section</a> of the Hookup Guide has a bit more info on the connector and recommends a header.</p> Chibi urn:uuid:c83e7c9f-7b46-8592-f229-bf066775b289 2015-11-23T10:15:48-07:00 <p>What spacing are the 5x2 header pins? What is the part number for Break Away Headers for the 5x2 pins?</p> <blockquote><p>Note: The breakout does NOT have headers installed and will need to purchased and soldered on yourself. Check the Recommended Products section below for the type of headers we use in the Hookup Guide!</p></blockquote> <p>All the headers in the referenced document are .1 inch spacing and the 5x2 arrays appear much smaller than .1 spacing.</p> Customer #286247 urn:uuid:5f4690e7-2fff-394b-c2c2-3cff4a39bbdb 2015-11-21T12:25:32-07:00 <p>I have the SD card connected with pin 9 as the chip select. Sam won&rsquo;t initialize the card. All I did was pop out the pro mini 3.3v and popped this in the board. Code compiles and downloads but won&rsquo;t initialize card. The pro mini had no issues with the SD on my board.</p> M-Short urn:uuid:9aebee9a-413f-28e6-8994-1fc4182a543a 2015-11-20T09:09:47-07:00 <p>The regulator we use on this is the <a href="http://www.diodes.com/_files/datasheets/AP2112.pdf" rel="nofollow" >ap2112k</a>. I&rsquo;m not sure what setup the Zero uses, but its probably not going to be exactly the same. Feel free to check out the schematic (in the documents section) or the datasheet for <a href="http://www.diodes.com/_files/datasheets/AP2112.pdf" rel="nofollow" >ap2112k</a>.</p> Drew Folta urn:uuid:ff04e17f-fbdc-970f-557a-ccd446ff0def 2015-11-19T21:24:03-07:00 <p>I&rsquo;m curious about the overhead/efficiency of the power regulation on board. Will this work if I plug a lipo (3.7-4.2v) into VIN? Does it have the same DC-DC converter and LDO voltage regulator pair that the Zero has?</p> <p>Basically I want to run this for 7 days from a 2500mAh lipo, which I think works out to an average current of 13mA. I&rsquo;m hoping to make heavy use of standby mode to accomplish this, but I&rsquo;m worried about &ldquo;station keeping&rdquo; components such as the regulator(s).</p> Customer #160179 urn:uuid:4a4b7286-c5dd-ccd8-181c-d5c7c9cd1052 2015-11-17T00:49:45-07:00 <p>Great. SparkFun is awesome! Thank you.</p> bentwookiee urn:uuid:cc883377-f4dc-3fdc-0854-aa55aca093fa 2015-11-16T09:14:48-07:00 <p>If anyone is looking for a debug header, part# 20021111-00010T4LF from FCI looks like a good candidate. Also, I highly recommend the Atmel-ICE debugger, for those going beyond the Arduino IDE.</p> Jimb0 urn:uuid:5f06a6a5-249e-f112-5601-a9af914cc982 2015-11-16T08:47:11-07:00 <p>We could probably find a better home for it. For now it&rsquo;s in our <a href="https://github.com/sparkfun/Arduino_Boards/tree/master/sparkfun/samd/bootloaders/zero" rel="nofollow" >Arduino_Boards</a> repo. I&rsquo;ll see about getting it in the individual boards' repo&rsquo;s.</p> Customer #160179 urn:uuid:c39f3410-b9a4-395d-34fe-041fa6c23c72 2015-11-15T13:26:19-07:00 <p>Yes, but&hellip;Is it opensource? Where can I find it? I&rsquo;ve been checked the Git repository, but without luck.</p> Customer #736640 urn:uuid:c691a4c4-8fa5-6342-3130-032ca40888e2 2015-11-14T10:11:02-07:00 <p>Unfortunately, the SparkFun SAMD21 Mini Breakout doesn&rsquo;t breakout the SPI header, used by the arduino SPI library&hellip;. :-( What about that ?</p> Customer #496669 urn:uuid:84166504-f72a-5233-3166-f34b2ade6ba4 2015-11-14T01:25:43-07:00 <p>I wish I had known about this a couple of months ago! :) I am totally going to start using this Micro in all of my projects, especially since it has 256K of storage space and hardware serial on different pins.</p> tetsujin urn:uuid:d6ec52bd-6a11-0d14-2090-c42ed4e60df2 2015-11-14T00:31:08-07:00 <p>Hrm, I was hoping this would be a step up from the Teensy 3.2, but it seems to fall a bit short instead. Mainly in terms of RAM (half) and CPU speed (2/3)</p> qzjake urn:uuid:b8d6988a-d4bf-7a6b-6546-bd17cd8a66d5 2015-11-13T16:02:00-07:00 <p>I have faith in the Sparkfun people. I look forward to the version with a built in lipo charger :D</p> qzjake urn:uuid:77b5d3b7-f135-7233-422b-97739aadede9 2015-11-13T16:00:44-07:00 <p>what kind of current does it pull? How well does it sleep?</p> bentwookiee urn:uuid:fa47239c-4425-96ee-246b-030e9ad72a51 2015-11-13T13:26:36-07:00 <p>There are no parts on the back, but I see plenty of traces. There really isn&rsquo;t a ton of room left on there.</p> Customer #161873 urn:uuid:45c574ed-f5d7-2a66-f1db-bb65cfc996a3 2015-11-13T12:30:48-07:00 <p>You can update the description but today&rsquo;s email from SF made the claim, so let the heads roll.</p> Xuth urn:uuid:7cd9292f-22db-46ff-fb2c-5aca8fe368bb 2015-11-13T11:49:42-07:00 <p>This would be an awesome board to have a one or two 5V outputs (similar to the Teensy LC, but the 8k ram is too limiting for many of my needs), so that you don&rsquo;t need separate level shifters when using 5V hardware like WS2811 LEDs.</p> McSarge urn:uuid:6c4925bd-83ed-13a8-01a6-b0ff78267493 2015-11-13T11:38:05-07:00 <p>There is nothing on the back! Just put some pads on there to hook up the LiPo charger!</p> Jimb0 urn:uuid:cc39e5b9-2791-9873-5982-085f9dbfcf61 2015-11-13T11:15:18-07:00 <p>We program a bootloader on it here, when we build the board. All you need to program it is a USB cable!</p> Customer #160179 urn:uuid:d1970197-8568-84e0-af04-26d1dfc6673a 2015-11-13T10:46:53-07:00 <p>It&rsquo;s really cool. What about the bootloader? Is it necessary upload a previous bootloader to the ATSAMD21G18? Thanks!</p> JopieK urn:uuid:63e1aaa7-9399-c7c7-afde-9970ecdcb645 2015-11-13T10:45:59-07:00 <p>Very interesting, this will really help in creating one&rsquo;s own ARM solutions and provides a solid base to build those on. Thanks SFE!</p> TECH GEEK urn:uuid:0211feb1-f2b9-b7c8-331d-7a5361b9a372 2015-11-13T10:44:43-07:00 <p>What about putting pads (underpopulated?) for the ic and stuff on the bottom near the usb? Also why are you stuck with the current board size? I mean I honestly passed by this when I first saw it thinking it was a &ldquo;RedBoard mini&rdquo;. SFE should try to make every product unique looking in my opinion.</p> <p>You could also have it on a break-away part of the board at the end (near button). That would also allow users who snap the optional pcb off to get an additional lipo charging board for other projects!</p> LightManCA urn:uuid:51d3a77f-3722-7aa5-32a0-6f1c35adc2cf 2015-11-13T10:34:58-07:00 <p>This is awesome! Would have loved to have had this for a project I was working on a few years ago.</p> M-Short urn:uuid:8af70e69-62b6-c8c8-1876-a757d4ba2dc5 2015-11-13T10:33:02-07:00 <p>Honestly I have no idea where we&rsquo;d put it. That is a pretty tight little board and is already 4 layers. I&rsquo;ll pass on the suggestion though.</p> TECH GEEK urn:uuid:ccd6af30-19ea-d6ef-0595-e18ea95b4c56 2015-11-13T10:24:07-07:00 <p>How hard would it be to have RevB include a lipo charger?</p> M-Short urn:uuid:d890291f-5ab0-92fe-249a-2bea3b010409 2015-11-13T10:22:35-07:00 <p>Hate to rain on your parade, this board doesn&rsquo;t have the Lipo charger (just the full sized version). We&rsquo;re updating the description now.</p> Customer #516348 urn:uuid:57ad1094-0358-34c9-8b2e-8ea9c4e776ce 2015-11-13T10:13:02-07:00 <p>The integrated Lipo charger might make me use this rather than the Teensy LC/3.1/3.2 on my next project - but I so do love the teensy. It would be interesting to see them benchmarked/compared. Come on Sparkfun, how about it??</p>