From 40ab1463c3da0c844eedba5c5f52d5ef8af322c4 Mon Sep 17 00:00:00 2001 From: Philip Lampkin Date: Sat, 24 Apr 2021 12:07:04 -0500 Subject: terminology update --- digital-driver-board/README.md | 58 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 digital-driver-board/README.md (limited to 'digital-driver-board/README.md') diff --git a/digital-driver-board/README.md b/digital-driver-board/README.md new file mode 100644 index 0000000..7483c1d --- /dev/null +++ b/digital-driver-board/README.md @@ -0,0 +1,58 @@ +# digital-driver + +A photoreactor driver board designed to be controlled digitally over I2C. + +## PCB + +This PCB was designed using KiCAD version 5. +Refer to `driver.pdf` for schematic. +PCB images generated with [tracespace](https://github.com/tracespace/tracespace) follow. + +![top](./top.png "PCB top view") + +![bottom](./bottom.png "PCB bottom view") + +Bill of Materials + +| reference | value | manufacturer | part number | DigiKey | Newark | +| :------------- | :------------ | :----------- | :---------- | :------ | :----- | +| C2 | 10u | | | | | +| C3 | 22u | | | | | +| D1 | (red) | | | | | +| D2 | (blue) | | | | | +| J1, J2 | | | | | | +| J3, J4 | | | | | | +| J5 | fan connector | | | | | +| J7 | LED connector | | | | | +| PS1 | | | | | | +| R1, R4, R6, R7 | | | | | | +| R2, R5 | | | | | | +| U1 | | | | | | +| U2 | | | | | | + +## I2C Interface + +DOCUMENTATION TODO + +## Firmware + +Find in "firmware" folder. + +Use Arduino IDE. + +We programmed the ATtiny85 using the sparkfun Tiny AVR Programmer: [PGM-11801](https://www.sparkfun.com/products/11801). + +## Changelog + +### Unprinted + +### Revision B + +#### Fixed +- silk screen polarity markings for LED +- backwards I2C connectors + +### Revision A + +#### Added +- initial design -- cgit v1.2.3