ESP-DSC: Digital Setting Circles for ESP-12E/F
Low cost alternative to my original Digital Setting Circles project the Teensy-DSC. This new design uses the cheap ESP-12E/F WiFi enabled microcontroller which saves about 60% of the original price (~$40 vs ~$100).
I'm also planing to include the necessary .STL files so you can 3D print the appropriate enclosure for the board.
More information about this project is available on my website.
- Design PCB (Initial beta design is complete)
- Port over the TeensyDSC code to the ESP-12 (WIP)
- Verify that the ESP-12E is capable of handeling 2.5k encoders (complete!)
- Verify that the ESP-12E is capable of handeling 10k encoders (TBD)
- Create the necessary STL files to 3D print an enclosure for the board (TBD)
I wanted to do my own digital setting circles (DSC) for my Apertura AD12. The main goals were:
- Support for at least 40K resolution via quadurature decoding (10k encoders)
- Built in WiFi access point to allow wirelessly interfacing to an Apple iPad or Android tablet
- Supporting at least SkySafari Plus/Pro
- Powered via USB connection
- Using industry standard RJ45 connection to encoders
- Open source software & PCB design (GPLv3)
- Inexpensive! All the components should be available for < $40.
You will need the Arduino 1.8.1+ IDE. You will need to add support for the ESP8266 by following the directions here.
Before you program your ESP-DSC you will need to:
- Copy src/esp_dsc/config.h.sample to src/esp_dsc/config.h
- edit src/esp_dsc/config.h
- edit src/esp_dsc/esp_dsc.h
Under the tools menu, configure your board as follows:
- Board: NodeMCU 1.0 (ESP-12E Module)
- Flash Size: 4M (3M SPIFFS)
- CPU Frequency: 80Mhz
- Upload Speed: 115200 Baud
Do the following exactly:
- Disconnect the ESP-DSC from the encoders
- Connect a FTDI board to the FTDI header on the ESP-DSC and plug that into your computer
- Select the FTDI as your serial port in the Arduino IDE Tools menu
- Press Reset button
- Press Program button
- Release Reset button
- Release Program button
- Press the Upload button in the Arduino IDE Tools menu
- SkySafari Plus/Pro
- Select "Basic Encoder System"
- Encoder Steps: Get Automatically
- TCP Port 4030
There are a bunch of similar projects to ESP-DSC which you should be aware of: