Shared Projects

Breakout board for PDM microphone MP45DT02 from ST

$3.10 for three. Two plated slots this time.

Plated slots are usually manufactured fine but Oshpark does not guarantee them. Internal cutouts and slots. I wouldn’t order a ton of boards at one time.
http://budgetlightforum.com/node/37851

R1,R2 100k C1 0.1uF C2 10uF CLR dunno

Add to second AV OUT on Super Nintendo/SNES and Super Famicom/SFC

Edit: This board was not demonstrated to function properly. However, it closely follows the manufacturer’s reference schematics for both the evaluation board and datasheet examples. The current assumption is the chip isn’t being configured properly.

Original:

Demonstrating the use of the TI bq24251 chip in a VQFN-24 package. Designed using an Adafruit MCP73833 charger breakout board as a reference.

Charges any LiPo/Li-ion battery. Defaults to 1A max charge rate, but can be set up to 2A through I2C.

Contact [email protected] for a BOM and assembly guide.

4-Function switches (48v,Z,Pad,Phase)

Board to control 3 dSPIN L6470 stepper motor drivers

OpenSky_NoLDO_v2

Simple circuit using LCM555 timer for clock to operate SN54LV163A binary 1 - 7 counter which drives FFB3904 dual mosfets that control two rgb LEDs which, lastly, cause the owl’s eyes to glow with continuously varying color. Intended as a wearable pendant for little girls and daring men. Runs off of a 40 mAH LiPo. Added SMD switch for power on/off.

A simple (straight through) breakout for the PulsedLight3d.com LIDAR Lite module. Main feature is strain relief for the wires.

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. Added bypass caps on ICM20730 VDD and VDDIO.

Storage Backplane V2.1

OS Backplane V2.1

Redesign of the breakout board for ST Microelectronics' VL6180X proximity sensor for breadboarding with Teensy and Arduino. VIN is between 3 and 5.5 V. Sensor uses time of flight to detect absolute distances independent of surface reflectance up to 25 cm away. Can be used to recognize hand gestures for sophisticated touchless micro-controlling. Small package, low cost, and low power usage makes integrating into existing projects, or use as a Teensy 3.1 or Arduino Pro Mini add-on board very attractive. In fact, VIN and GND can be supplied via Teensy GPIO pins by digitalWrite(HIGH) and digitalWrite(LOW) since total current draw is always less than 25 mA for this sensor. Replaced voltage regulator with TI TLV70728, reduced size of passives to 0402, and significantly improved layout.

FPGA to LED driver board

Signal Inverter (panelized, 3 boards) to be used for example for S.Bus to Naze32 or any other logical signal that needs to be inverted.

BOM

• 2x 1kΩ resistor [0603]
• 1x NPN transistor [SOT23] e.g. N2222A

Constant current driver controllable via PWM or voltage

CAN Node with ATMegaXXM1, ISP correction