This project has been replaced by a newer version with improved silkscreen and files so PCBWay can do the surface mount soldering for you.

https://www.pcbway.com/project/shareproject/ByteSizedEncoderDecoder_v1_1_a5a4bd50.html

Features:

* Reads 8 quadrature encoders

* 1.0x0.85 inches

* I2C (Qwiic Compatible)

* powered by an ATMega328PB (chip in an Arduino Uno)

* hand solderable surface mount components

I've been working on hardware and software for small wifi controlled robots since 2020.

As I have designed increasingly small circuit boards for controlling servos and motors on a robot (with the support of PCBWay!), I started looking for a way to connect lots of quadrature encoders as inputs to a microcontroller. I was unable to find any existing Qwiic-compatible encoder reading boards that can handle high-speed quadrature input. This board can help you control 8 motors with encoder feedback for precise control.

The "Byte Sized Encoder Decoder" reads 8 quadrature encoders and communicates over I2C.

Testing:

Approximately 12000 encoder counts per second can be read from each encoder, but do your own testing before trusting this software.

See, and contribute to, this discussion on testing results: #6

I've written an Arduino library for communicating with this board. The library is in the PlatformIO and Arduino library managers in addition to here along with all the hardware documentation: https://github.com/RCMgames/BSED

links

• Documentation for Library
• Hardware (KiCAD files!)
• Firmware

Assembly:

1. solder the JST plugs to the front of the board
2. solder the ATMega to the back of the board
3. solder the 4 rows of 8 header pins
4. don't solder anything to the 2x3 pins. Press a usbasp programmer against those pins to program the ATMega with the Firmware through the ICSP.