Shared Projects

Invensense’s latest digital MEMS microphone with 24-bit I2S serial data output in a smaller, higher S/N package.

Receiver unit for iTHP-5-DB9 Probe Driver. Can extend I2C data via CAT5/6 cables over 500 feet.

Transformer Balanced Headphone Amp with option for loop through XLR based on LM386

Omega iTHP-5-DB9 Temperature & Humidity probe driver. Extends probe I2C data over CAT-5/6 cable up to 500 feet

A Wearable UV Monitor

Shapeoko Hall Effect Sensor board

Wi-Fi Board with GPS and Teensy 3.1. Project Details here: http://triembed.org/blog/?p=959

Tracked Robotic Chassis Board

JTAG mini adapter

A simple driver board for WS2812B digital RGB-LEDs using the ATxmega128AU.

Bill of Materials

| ID | Value  | Name               |
------------------------------------
| C1 | 4,7uF  | GRM188R61E475KE11D |
| C2 | 10uF   | GRM188R61A106ME69D |
| C3 | 100nF  | MC0402X104K100CT   |
| C4 | 100nF  | MC0402X104K100CT   |
| C5 | 100nF  | MC0402X104K100CT   |
| C6 | 100nF  | MC0402X104K100CT   |
| C7 | 100nF  | MC0402X104K100CT   |
| C8 | 4,7uF  | GRM188R61E475KE11D |
| C9 | 4,7nF  | MC0603B472J500CT   |
| D1 | 30V    | BAT54C,215         |
| D2 | Green  | KPH-1608SGC        |
| D3 | Yellow | KPH-1608SYCK       |
| D4 | Red    | KPH-1608EC         |
| J1 | FTDI   | Header 1x6 90°     |
| J2 | PWRSEL | Header 1x3         |
| J3 | LIPO   | 22-05-7025         |
| J4 | 5V     | 22-05-7025         |
| J5 | LED    | 22-05-7025         |
| J6 | PDI    | MicroMatch         |
| L1 | 220Ohm | BLM18AG221SH1D     |
| R1 | 100    | CRGH0603J100R      |
| R2 | 120    | CRGH0603J120R      |
| R3 | 120    | CRGH0603J120R      |
| R4 | 10K    | CRGH0603J10K       |
| R5 | 120    | CRGH0603J120R      |
| R6 | 10K    | CRGH0603J10K       |
| R7 | 10K    | CRGH0603J10K       |
| S1 | RESET  | KMR421NG           |
| S2 | USER   | KMR421NG           |
| U1 | 3.3V   | LT1129CST-3.3      |
| U2 |        | ATXMEGA128A4U-AU   |
| U3 |        | TLP118             |

DeviationTx.com Universal transceiver board

This is the SparkFun “Time-of-Flight” Range Finder, a sensor board for the VL6180 distance sensor. A parts list from mouser can be found here

To be clear, this board was designed entirely by SparkFun. You can find the Eagle CAD files on their product page. I simply downloaded their file and had OSHPark make the board without any modifications.

A simple WS2812 RGB LED display.

Simple board with 28-pin ZIF socket and 6-pin AVRISP connector.

2 Zone Controller - ARM KL25 Based - uses a FRDM-KL25Z board as the controller.

Designed to be used with Malibu lighting or similar outdoor 12V lighting systems. In my case the lighting is LED to reduce wattage rating requirements.

Has module sockets for BMP180 pressure sensor, BH1750 visible light sensor, DS3231 RTC/EEPROM, XBee radio, ESP8266 Wi-Fi module, and two LCD modules.

Based off the (working) Takiuino v1, the v2 is a more generic layout which exposes all of the pins available of the 644/1284p chips. Sadly couldn’t keep the board the same width as the other boards in the range (nano, pro mini, pro micro, teensy, etc), this is one 2.54mm pin width wider.

Code soon available (based on the mighty 1284 code)

MarcoBot Version 2

A simple 555 timer based boost regulator.

Simple Teensy 3.1 add-on board to test the relative performance of various state-of-the-art MEMS pressure sensors. Included is Invensense’s 3.5 mm x 3.5 mm ICM20730 7-axis motion sensor with accel/gyro and embedded pressure sensor, Bosch’s 2.5 mm x 2 mm BMP280, ST Microelectronics' 2.5 mm x 2.5 mm LPS25H, and Measurement Specialties' 3 mm x 3 mm MS5637. Broken out are all interrupts (ICM20730 and LPS25H) and all I2C device address bits (ICM20730, BMP280, and LPS25H) to avoid address conflicts. Also broken out is the ICM20730 FSYNC pin to test electronic image stabilization.

Minimalist Shield for nRF on a Pi