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ESP32Focuser hardware

simonachmueller·ESP32Focuser-hardware·schematics/ESP32Focuser.kicad_pcb

ESP32Focuser hardware PCB layout, top view — open source ESP32 board by simonachmueller
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About the ESP32Focuser hardware PCB

ESP32Focuser hardware is an open source ESP32 PCB design by simonachmueller, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 85.5 × 77.5 mm, with 11 components from 11 distinct parts.

Its main chip is the ESP32-DEVKITC-32D, from the ESP32 family. Other key parts include the TMC2209_Board and LM2596_Board. By type, the board carries 3 ICs, 3 connectors, 3 resistors, 1 transistor and 1 diode.

It belongs with the robotics & motion and science & space designs in this gallery.

From the project

A hardware part of the https://github.com/simonachmueller/ESP32Focuser

The schematics is pretty easy. You just connect the pins of the ESP32 dev board with the TMC2209 board, add power supply and connect motor - from this point you can control the focuser from the computer over ASCOM/INDI driver. If you want to use an optical encoder as a handcontroller (what I would really advise you if you want to get rid of vibrations when you touch the telescope focuser knob), connect it to the pins on the ESP32 board as well.

ESP32Focuser hardware, from the project README
From the project README

Main components on the ESP32Focuser hardware

ESP32-DEVKITC-32DTMC2209_BoardLM2596_Board

ESP32Focuser hardware bill of materials (BOM)

11 components, 11 distinct parts.

QtyPartRefs
1
ESP32-DEVKITC-32D
U1
1
TMC2209_Board
U2
1
LM2596_Board
U3
1
AO3401A
Q1
1
PWR_Conn
J1
1
Motor_Conn
J2
1
Encoder_Conn
J3
1
LED
D1
1
80k
R1
1
20k
R2
1
1k
R3

ESP32Focuser hardware design files

The KiCad project lives in the simonachmueller/ESP32Focuser-hardware repository on GitHub; these links point at the commit this page was built from.

ESP32Focuser hardware: common questions

What microcontroller does the ESP32Focuser hardware use?

The ESP32Focuser hardware is built around the ESP32-DEVKITC-32D, from the ESP32 family.

How big is the ESP32Focuser hardware PCB?

The ESP32Focuser hardware measures 85.5 × 77.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32Focuser hardware?

11 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the ESP32Focuser hardware design files?

From the simonachmueller/ESP32Focuser-hardware repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the ESP32Focuser hardware design in my own project?

Yes, under the terms of its GPL-3.0 license, which simonachmueller chose for the repository.

Can I test firmware for the ESP32Focuser hardware without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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