VGA to I2C by @Thaolia from http://flipthatbit.net/wp-content/uploads/2011/04/vga2i2c.jpg

Software Defined Amateur Radio Transceiver

Ian’s modified design for the hard disk shutter architecture- Weld Lab. Shared with Dave Prine

For more information, see this thread: http://budgetlightforum.com/node/38687

OBSOLETE - see V2.1 now published https://oshpark.com/shared_projects/sRFJ0AtU

Flexible prototyping shield for your Arduino Micro.

Only 0.2" longer and wider than the Arduino Micro. 139 holes ready for your components to solder in.

0.1" hole spacing will accept standard ICs, breadboard headers, DuPont connectors, TO220 transistors and more. Extra +5V and Ground rails are provided at both ends of the board. All Arduino pins are connected to two adjacent holes, with cuttable and resolderable jumpers. Every pin is labelled on both sides of the board.

Mounting holes are 2mm. Can be drilled out to 3mm or 1/8" if required.

The Arduino “infinity” symbol and the ISP outline is included to help you plug in the Micro in the correct orientation. It could fit both ways but then the labels will be wrong.

Also check out the SMD version that has some surface-mount component outlines available.

ATMEGA 16/32 Breakout Board 8MHz 5V I2C SPI UART GPIO ADC

5v FTDI to ESP-01 3.3v AMS1117 Not Tested

for SparkFun IoT “Thing”, ESP-8266 board
see https://github.com/uChip/ThingShield

Breakout board for RFM23BP ISM band radio transceiver

D203S PIR signal processed by BISS0001 active only when photoresistor detects dark ambient conditions. PIR detection triggers 2600 mcd white led with 160 degree illumination for a time settable by a Murata potentiometer. Slide switch chooses between retrigger modes. In addition to the usual motion-activated illumination, the trigger signal from the BISS0001 is pinned out to the side of the board so other actions can be triggered such as camera control, relays, etc. Intended to be attached to a 9V battery for a compact motion controlled solution with the TI TPS714XX voltage regulator providing either 3V3 (here) or 5 V depending on the application.

TSSOP16 with triangle pattern back silkscreen

Tri / Sqr / Saw Eurorack LFO. Reverse engineered from a photo of a Doepfer A-143-3, with the addition of a bipolar LED indicator.

THIS VERSION HAS BEEN DEPRECATED. See v1.5 on OSH Park

ESP-01 & ESP-03 Breadboard Breakout

Provides voltage regulation and switches to enter programming mode (over FTDI or serial UART).

Goal

Provide a simple-to-use programmer for ESP8266 modules similar to Adafruit Huzzah ESP8266 module.

Usage:

Solder all components on, including your choice of ESP-01 or ESP-03. Insert UART connection into header at end of board. S1 will reset the board. To program board, hold S2 while hitting S1. S3 will select between 3.3V and 5V input on Vin (towards the ESP module is 5V).

Schematic

Schematic, BOM, and Ultiboard layout files can be found at the github repo.

Components:

U1 can take either castellated SMD pads (ESP-03) or a 2x4 .1" pitch female header (ESP-01).

R1-R4 = 10k 0603, R5 = 1k 0603.

C1&C3 = 10uF 0805, C2 = 0.1uF 0603.

LED1 = LTST-C190KFKT Orange 0603 LED.

U2 = LD1117AS33 3.3V 1A Voltage Regulator.

S1-S2 = KMR221NG LFS pushbutton momentary SPST switch. S3 = PCM12SM SPDT slide switch.