DAG144

Member Since: December 26, 2012

Country: United States

  • Product SEN-08257 | about a year ago

    DIY replacement for sensor cap: I recently purchased the SHT15 breakout board and added it to my proMicro Barometer project. I had no trouble getting it working using the practicalarduino / SHT1x code from Github written by Jonathan Oxor (June 16, 2009). To protect the sensor, I wrapped a 6 mm strip of plastic from those very thin plastic bags used in the produce department. I just wrapped a single layer over the sensor and tied the strip behind the board. The sensor is still responsive when I breath on it so the plastic is not a complete moisture barrier but should help protect the sensor from dust.

  • Product DEV-10999 | about a year ago

    The RTL-9876 charger protects the battery but the battery I used also has a protection circuit. I performed a test by allowing the battery to discharge until the circuit stopped working. I measured the voltage from the battery at frequent intervals. Starting with a fully charged voltage of 4.1v, after about 60 hours the voltage had dropped to 3.7v, then at about 70 hours the voltage was at 3.6. Shortly after 70 hours, the battery shut down. No voltage from the battery at all so I think it was the battery’s built-in protection circuit. I did a very short charge cycle to turn the battery on again and then measured the voltage at 3.0v. My conclusion is that even though the RTL-9876 charger will shut down at 2.7v, the battery’s circuit cut off first.

  • Product DEV-10999 | about a year ago

    I purchased the Lithium Polymer USB Charger and Battery combination, RTL-9876. I connected the output of the charger/battery to the RAW pin on the Arduino Pro Micro board. To use the Arduino USB connector as the source for the charger, I removed the fuse on the Pro Micro board and soldered a wire to the pad that is connected to the USB power pin (Looking at the Pro Micro board with the USB at the top, the right pad is the UVCC pin on the USB connector). This wire is then soldered to the VBUS on charger board. There is convenient pad in the upper right corner of the charger board. Now, the USB connector on the Arduino board is the source power for the charger and can still be used for programming the board.

  • Product SEN-11282 | about a year ago

    Recording barometer: I combined this sensor with a ProMicro 3.3V Arduino and a PCD8544 LCD display to keep a history of atmospheric pressure for the previous 84 hours. Go to the following instagram link to see it: http://distilleryimage7.instagram.com/3c317112778b11e28d6622000a1fbc43_6.jpg

  • Tutorial - BMP085 Barometric Pressure Sensor Quickstart | about a year ago

    Recording barometer: I combined this sensor with a ProMicro 3.3V Arduino and a PCD8544 LCD display to keep a history of atmospheric pressure for the previous 84 hours. Go to the following instagram link to see it: http://distilleryimage7.instagram.com/3c317112778b11e28d6622000a1fbc43_6.jpg

No public wish lists :(