This is a 4 way PWM fan splitter for case fans. Will split the motherboard PWM signal to four 12V fans, and is powered by a 4 pin molex connector.

Irrigate7

Seven latching solenoid driver outputs, seven pulse-type sensor inputs for moisture and one pulse-type flow sensing input. Solar power charge control for 6V SLA type battery. ATMega1284P mapped to Arduino Uno R3 compatible header. DIN rail mounting.

Irrigate7

Simple AM transmitter in Altoids tin form

Simple FM Transmitter

ATxmega128D3 breakout designed for easy interfacing with nokia displays

[WIP] micro quad [DO NOT ORDER]

IOCane Earring 7 RevB

irrcbot

This is the Sparky 2.0 flight controller for Tau Labs. It features an F4 processor, MPU9250 mag/gyro/accel, MS5611 barometer, CAN transceiver, RFM22b radio module and more.

Find more information at the Tau Labs wik or my blog. Also available for purchase preassembled here

The BOM is here and the assembly instructions are here.

High Quality 24-bit audio board for Teensy 3.x By RF William Hollender ([email protected], and whollender in the PJRC forums).

Link to forum thread describing development

KiCAD board project (including libraries) are up at github.

The files are licensed under the Creative Commons CC-BY-SA-NC v4.0 license. See LICENSE.md for more details.

Not For Commercial use.

This is the little test board shown here:

http://www.pjrc.com/store/display_ili9341.html

Parts used on the board are:

    LM7805 voltage regulator        Digikey LM7805ACT-ND
    B130 Schottky diode             Digikey B130-FDICT-ND
    140 mA PTC fuse                 Digikey 507-1495-1-ND
    100 ohm 1/4 watt resistor       Digikey 100XBK-ND
    DC power jack                   Mouser 163-7620E-E
    1uF 0805 capacitor              Digikey 1276-1066-1-ND

How to use Digikey’s website to find alternate parts when any of these aren’t in stock.

An older version of this board had a minor error. You can easily identify the board version by the location of the 100 ohm resistor.

Breakout board for the HM-11 BLE module. Based on the work by Genoil

I2Cnode v0.2

msp430, cc2500, drv8834

USB to UART

TI’s TMP007 is an IR Thermopile sensor which measures the temperature of an object without contacting the object. Board designed as a Teensy 3.x add-on where power and ground are provided by digitalWrite(HIGH/LOW) from Teensy GPIO pins due to very low-current (270 microAmps) operation. Interesting design challenge since the sensor is very sensitive to thermal noise so pains have to be taken to thermally isolate the tiny BGA sensor. Sensor has an alert (interrupt) function as well as one of the two address pins broken out here so two of these can be on the same I2C bus.

Colorizador/Adaptador RGB para TK-85

PID temperature controller shield for reading in thermocouple data and using the results to control a SSR.

Based on MAX 31855 thermocouple amplifier. Has a Newport PCC-SMP-K mini thermocouple connector, JST XH-4 connector to the SSR/PSU assembly, and a header for the Adafruit 128x32 I2C OLED Display. Includes level shifting MOSFETs to play safely with 5V Arduinos (but assumes the 3.3V power line is, in fact, 3.3V).

https://github.com/schizobovine/pidplate