Shared Projects by DaMaster_Architect

A breadboard compatible breakout board for the MCP73871 battery charging chip. The design is based on the Adafruit solar charger.

Note: PROG1 and THERM pins are broken out. External resistors need to be connected to these pins for the circuit to work. See the MCP73871 datasheet for more info on the PROG1 and THERM pins.

A breakout for SOT23 mosfets. Maintains the pinout that TO220 and TO92 mosfets usually have, so that this breakout can be used as a drop-in replacement. Advised to use with right-angle headers, so that the breakout takes up less space on a prototyping board.

A simple breakout for the FS8205A dual power mosfet

A breakout board for a generic ESP8266 12E/F. The board is compatible with either version. The only difference between -E and -F is the layout of the antenna.

The schematics are based on the following blogpost: Falafel - How to Wire the ESP8266-12 for Programming

The board contains a reset switch, a 2-pin header for the flash jumper, pull-up and pull-down resistors, and decoupling caps for VCC. An ESP8266 can be programmed by first tying GPIO0 (D3) to GND using a jumper. Then, press and release the reset switch. The ESP8266 will then remain in flash mode until the jumper is removed and the reset switch is pressed again.

Resistor and capacitor values used:

• R1, R2, R3, R4, R5: 10kOhm, SMD 0805
• C1: 100nF, SMD 0805
• C2: 10uF, SMD 0805

A breakout board for a rotary encoder with pullups for both data lines. The board breaks out the following:

• VCC: connect to a 5V source
• A: the ‘A’ data line from the encoder. Connect to an input pin
• B: the ‘B’ data line from the encoder. Connect to an input pin
• GND: ground

The footprint for the two resistors is SMD 0805.

The board is compatible with:

• Bourns PEC12R
• Alps EC12
• Sparkfun rotary encoder, COM-09117

The footprint of these encoders is common, so the chances are that your encoder will also fit this size. Just compare the datasheet of your encoder and one of the encoders listed above.