SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492024-03-28T23:09:40-06:00SparkFun ElectronicsCustomer #116365 on KIT-13288 - Teensy Arduino Shield AdapterCustomer #116365urn:uuid:57f335c5-2160-c47f-0f29-fb831305053e2016-08-28T19:11:52-06:00<p>I found another problem on this board. this time it is with the Arduino footprint. The two mounting holes on either side of the ICSP header is out of alignment. And approximately 2.9mm too wide. Not a big deal for most, but if you're mounting it to avoid vibration like I am, it becomes a big deal. especially since these are the only two usable screw holes on the board.<p>The third mounting hole is so close to the headers that it is almost impossible to use. but this is an issue that plagues Arduino as well.</p><p>It is the two mounting holes on either side of the ICSP header that concerns me at this point.</p></p>
Customer #116365 on KIT-13288 - Teensy Arduino Shield AdapterCustomer #116365urn:uuid:86b22493-7df2-9aa7-16bc-134f26ddae7a2016-08-24T11:25:33-06:00<p>Please read my post again. I did not mention anything about the "Arduino" pin layout. I was referring to the way you placed the additional pins on this board. Specifically the DAC pins. This is a 4 pin arrangement that is .05" out of alignment with the rest of the standard pins. the other header pins that you placed on this board are also slightly out of alignment. But not enough to be concerned with. But it does show a lack of attention to detail. something that has shown up on some of your boards. Some of which has prevented me from purchasing a particular board.<p>in my case, I know of a couple products that I have chosen not to purchase because of lack of attention to detail. And in at least one case, I believe the Person was half drunk when he designed it. How it got past design review is a different Question. I am just going by the comments left for that board, I believe several others have chosen not to purchase it as well.</p><p>I'm not sure if you still have the beer keg available to your employees, but maybe it's time to get rid of it, or at least limit access to it till after business hours. your reputation is at stake here, which is a big part of your company. you can have a reputation for designing and producing good products or products that have not been thoroughly thought out. Or even dangerous, Which is a whole separate issue.</p><p>Again I have no problem with the Arduino board layout. It is what it is. It is your pin placement that I have a problem with.</p></p>
M-Short on KIT-13288 - Teensy Arduino Shield AdapterM-Shorturn:uuid:82614e8c-e9dc-c628-e621-2a38504a531b2016-08-23T16:54:46-06:00<p>This board was designed specifically to allow you to use an Arduino shield with a Teensy board. The off spacing is actually a feature/bug of the Arduino footprint. In order to make this compatible with Arduino shields we had to use the same spacing. Sorry for the trouble.</p>
Customer #116365 on KIT-13288 - Teensy Arduino Shield AdapterCustomer #116365urn:uuid:fad83476-bdc8-24da-4f2f-74919166d6db2016-08-23T14:10:42-06:00<p>I purchases board to use with the project that needed DAC. I need to amplify this voltage to 10 V, so I needed a proto-shield to accommodate a op amp. I have several generic proto-shields that have a .1 standard pin spacing. While trying to determine where my headers should be placed, I noticed the pin spacing for the DAC output did not line up at all. It was .05 off. I also noticed that other header pins that needed to be attached to a proto-shield was slightly off. This can make it difficult to use a standard proto-shield with your boards. Certain pins will be slightly out of alignment, even with the extension headers. The board is still usable, but I expected a standard pin arrangement for all pins. I suggest you use the standards header pin spacing on all your shields/adapters.</p>
Toni_K on KIT-13288 - Teensy Arduino Shield AdapterToni_Kurn:uuid:e2343eab-d1aa-0d56-55f8-2a4aab42fd172016-06-20T10:03:26-06:00<p>It's been submitted to our product suggestion team, so hopefully we'll get one out in the future!</p>
Zio on KIT-13288 - Teensy Arduino Shield AdapterZiourn:uuid:d9998437-491e-f3b5-4c03-664be2cad9a82016-06-16T10:33:26-06:00<p>Thanks! Any chance of a pro mini version being made? I know the Pro exists and is essentially what I am asking for but I have a ton of Minis from that Arduino day sell a few years back (you know the one)</p>
Toni_K on KIT-13288 - Teensy Arduino Shield AdapterToni_Kurn:uuid:57f77e4e-1823-8129-8778-d11093ec37942016-06-16T09:37:04-06:00<p>Both great ideas! There's really a large number of variations on how you could put this together - but like every product/project, there's always room for customization!</p>
Zio on KIT-13288 - Teensy Arduino Shield AdapterZiourn:uuid:a3588afa-0aae-3a82-659b-5bd78291282f2016-06-16T01:06:43-06:00<p>I noticed this board has to use tall headers inbetween so the shield above clears the teensy. You might want to use swiss machine pin headers on the teensy instead, they are lower profile. You could also probably solder the taller headers directly to the adapter instead of having them in between. Just an idea.</p>
Isdale on KIT-13288 - Teensy Arduino Shield AdapterIsdaleurn:uuid:56f2ce2b-0c76-cc50-71d9-dacfaeb730f52015-10-27T13:43:36-06:00<p>I'd love to see a board that is a mashup of this and the ProtoScrewShield. A Teensy Screw Shield? Stacking gets a bit tall</p>
Toni_K on KIT-13288 - Teensy Arduino Shield AdapterToni_Kurn:uuid:65eae5c6-5741-6b55-41f6-53076f22f7292015-09-29T09:26:47-06:00<p>It doesn't, but if you mount the Teensy onto the shield as shown in the hookup guide, you could run wires out from those pads to the rest of your project.</p>
Customer #575045 on KIT-13288 - Teensy Arduino Shield AdapterCustomer #575045urn:uuid:b29f8fc0-e121-9f73-c05b-4b0b3a521f352015-09-28T18:04:30-06:00<p>Does this shield break out the pads on the backside of the Teensy3.1?</p>
Sembazuru on KIT-13288 - Teensy Arduino Shield AdapterSembazuruurn:uuid:2a77dc8e-aca8-0049-fb02-d10523b014642015-06-29T14:32:58-06:00<p>Ok... Not finding the free time to do this quickly. I think I've finally finalized on a schematic (figuring out how to hook up regulators and provide jumpers for the 5V and 3.3V lines to make this board usable with both 5V and 3.3V Pro Minis was the hurdle there).<p>Now I need to make sure I have the footprints that I want and layout the board. It's still a work in progress. I thought I updated the github repo, but checking it from work I don't see that it is updated. Something to look into tonight...</p></p>
katana615 on KIT-13288 - Teensy Arduino Shield Adapterkatana615urn:uuid:384c546c-867a-29a5-d9cf-a8369b1bb2642015-06-29T07:56:00-06:00<p>Nice product BUT...mounting holes do not match the hole pattern from the UNO. Hole near ICSP header is not in the right location so it is not a drop in replacement.<p>Update: Would be nice to have resistor pads near the SJ1/SJ2 jumper pads for the I2C pull ups that the Teensy needs to have installed.
I used the recommended crystal from PJRC to allow the teensy to be mounted closer to the pcb for a lower profile fit into the case I am using. The supplied crystal for the RTC is way too big.</p></p>
Customer #403458 on KIT-13288 - Teensy Arduino Shield AdapterCustomer #403458urn:uuid:a8c9714f-2e16-b297-7847-65e2df7c304d2015-06-22T11:30:52-06:00<p>Cost is less of a concern for me than size. I do have a few Arduino Pro boards as well, but I'd like to plug my Pro Mini into the adapter, do my prototyping with full size shields, and then pull the Mini for insertion into my project. I'd love to see your Protoshield project though.</p>
M-Short on KIT-13288 - Teensy Arduino Shield AdapterM-Shorturn:uuid:d879745f-d00e-e923-a2b6-9f22af78d27e2015-06-22T09:45:10-06:00<p>Try the Arduino Pro. I have a feeling by time you get a Pro Mini, and even a basic shield you are going to be at or above the cost and size of the Arduino Pro, and probably close to that of the Redboard. Although I do have a Protoshield that I added headers to specifically so I could add a Pro Mini and have a shield compatible format.</p>
JopieK on KIT-13288 - Teensy Arduino Shield AdapterJopieKurn:uuid:1258726b-39fd-d096-dfbb-a36d198c9b8f2015-06-19T14:56:49-06:00<p>This is a very good shield. We made one ourselves for a high altitude balloon project with some students not too long ago but it will help teensy 3.x to a larger audience.</p>
Sembazuru on KIT-13288 - Teensy Arduino Shield AdapterSembazuruurn:uuid:fffe2bb2-8975-c64f-2767-6f7827504bd72015-06-19T12:49:13-06:00<p>That doesn't help when viewing the pdf schematic on a computer that doesn't (and won't) have Eagle installed. I.e. my work computer...</p>
Toni_K on KIT-13288 - Teensy Arduino Shield AdapterToni_Kurn:uuid:a204fa76-5dbb-748a-02e4-811ddc537d1d2015-06-19T12:40:48-06:00<p>If you run the command "Show VRAW", it will highlight all traces labeled VRAW in the schematic. This tool works for any signal/part you'd like to trace out on the board and schematic. Regarding HV_AREF, it is labeled to differentiate it from AREF on the Teensy.</p>
Customer #403458 on KIT-13288 - Teensy Arduino Shield AdapterCustomer #403458urn:uuid:019b8158-983a-766f-a47f-aab9a33a78602015-06-19T12:29:47-06:00<p>Correct. I only buy Pro Minis now so it would be great if Sparkfun made an adapter that allowed me to use the full size shields easily. I was going to make my own as an Eagle learning project, but I can wait for Sparkfun's version. Next Friday?</p>
Sembazuru on KIT-13288 - Teensy Arduino Shield AdapterSembazuruurn:uuid:b03aa161-4394-a536-125e-e4bc2da1b28d2015-06-19T12:27:59-06:00<p>If VRAW connects to the input of the 5V regulator, please show it.<p>Unless I'm misunderstanding the purpose of the IOREF pin, I thought is was a reference pin for shields to see what the I/O restrictions of the µC is (i.e. to be the bias voltage on the µC side of level shifters). While, yes, the Teensy3.1 is 5V tolerant, it only provides 3.3V on it's I/O pins as a logic "High", and most of the older Teensy boards are 3.3V <em>only</em>.</p><p>Granted, I haven't seen any Arduino shield that puts level shifters on all the I/O pins that it uses with the µC side power connected to the IOREF pin. And, I guess that makes this discussion academic, possibly even pedantic. ;-)</p><p>I understand not connecting HV_AREF to the Teensy for fear of blowing it out. If it isn't connected to anything else, why use the signal name on the schematic? (If the answer is "why not" then why didn't you use a signal name on the IOREF pin. Consistency, please.)</p></p>
Sembazuru on KIT-13288 - Teensy Arduino Shield AdapterSembazuruurn:uuid:78625f60-1aa2-1624-993b-8e4df8f76e092015-06-19T12:15:00-06:00<p>I've gotten started on something like this. See https://github.com/Sembazuru/Pro-Mini-to-UNO for my KiCAD files as they stand. It isn't complete, and only gets occasional work. I'll see if I can get it pushed through to Gerbers this weekend.</p>
Toni_K on KIT-13288 - Teensy Arduino Shield AdapterToni_Kurn:uuid:4c37edc0-be99-6b47-1cdc-c7258c6425162015-06-19T12:06:01-06:00<p>VRAW connects to the input on the 5V regulator. We didn't include all the possible power configurations for the AREF and IOREF pins simply to keep costs down. It'd be up to the user to connect those to the proper power supply for their particular project/shield they are using.</p>
Sembazuru on KIT-13288 - Teensy Arduino Shield AdapterSembazuruurn:uuid:beb97562-4e3a-17ff-a8ea-310e603c08c32015-06-19T11:56:04-06:00<p>I'm studying the schematic and have two questions... What do the Vin and ARef pins of the Arduino pinouts connect to? I can't find the other end of the "HV_AREF" and "VRAW" signals.<p>Also, the Arduino IOREF pin should probably be connected to "3.3V" just in case someone makes a shield that uses the IOREF pin as it is intended by the Arduino design.</p></p>
Customer #620308 on KIT-13288 - Teensy Arduino Shield AdapterCustomer #620308urn:uuid:f6629761-ec7e-fede-1e0f-ed7fd9cda00c2015-06-19T11:40:10-06:00<p>It's for the Teensy board(s) of PJRC: see https://www.sparkfun.com/products/12646</p>
Dave6 on KIT-13288 - Teensy Arduino Shield AdapterDave6urn:uuid:036f01f8-a28b-3ca2-1cd6-bca90d7d5ea62015-06-19T11:23:57-06:00<p>This is going to be great for prototyping; looking forward to giving it a spin.</p>
Dave6 on KIT-13288 - Teensy Arduino Shield AdapterDave6urn:uuid:983f75ff-2463-64e9-b6a4-8a42fb8b44a62015-06-19T11:23:37-06:00<p>Agreed; for prototyping this would be an excellent product.</p>
Toni_K on KIT-13288 - Teensy Arduino Shield AdapterToni_Kurn:uuid:c1ab20e1-c929-a6e2-694b-704ac90f1d552015-06-19T09:52:59-06:00<p>Do you mean a shield adapter for Pro Minis? That's great feedback - thanks!</p>
Customer #403458 on KIT-13288 - Teensy Arduino Shield AdapterCustomer #403458urn:uuid:df400ac4-5695-d454-9820-e7f9ee4b79ed2015-06-19T09:46:16-06:00<p>I've wanted this for the Pro Minis for a long time.</p>