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EncoderWiFiBT

AStrehlau·SmartEnconder-20xARGB·Hardware/PCB/EncoderWiFiBTPCB/EncoderWiFiBTPCB.kicad_pcb

EncoderWiFiBT PCB layout, top view — open source ESP32 board by AStrehlau

About the EncoderWiFiBT PCB

EncoderWiFiBT is an open source ESP32 PCB design by AStrehlau, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 34.8 × 34.8 mm, with 29 components from 18 distinct parts.

Its main chip is the CH340C, from the ESP32 family. Other key parts include the M3406 and ESP32-WROOM-32D. By type, the board carries 8 capacitors, 8 resistors, 3 ICs, 3 connectors, 3 inductors and 2 transistors.

It belongs with the iot & wireless and displays & leds designs in this gallery.

From the project

WiFi and Bluetooth capable rotary encoder with 20 adressable LEDs

This "SmartEncoder" uses 20 adressable LEDs (SK6805-EC15 or potentially XL-1615RGBC-WS2812B) to visualize the set point of the encoder. The SmartEncoder boasts WiFi and Bluetooth capability using the ESP32, which makes it viable for Smart Home and PC control applications. It should be noted that stock Windows does not normally have the capability to send the current volume level over BT, which is why a PC side software to take care of that will be uploaded in the future for use as a BT PC volume knob.

EncoderWiFiBT, from the project README
From the project README

Main components on the EncoderWiFiBT

CH340CM3406ESP32-WROOM-32D

EncoderWiFiBT bill of materials (BOM)

29 components, 18 distinct parts.

QtyPartRefs
1
CH340C
U1
1
M3406
U3
1
ESP32-WROOM-32D
U4
2
MMBT4401
Q1, Q2
1
USB_C_Receptacle_USB2.0
J1
2
Conn_01x04_Pin
J2, J3
1
SolderJumper_2_Open
JP1
1
BLUE
D1
2
WLBD2012HCU601TH
L1, L2
1
2.2uH
L3
3
1uF/25V/X5R
C1, C2, C4
3
100nF/10V/X7R
C3, C5, C6
2
22uF/10V/X5R
C7, C8
3
10k
R1, R2, R5
2
5.1k
R3, R4
1
1k
R6
1
68k
R7
1
15k
R8

EncoderWiFiBT design files

The KiCad project lives in the AStrehlau/SmartEnconder-20xARGB repository on GitHub; these links point at the commit this page was built from.

EncoderWiFiBT: common questions

What microcontroller does the EncoderWiFiBT use?

The EncoderWiFiBT is built around the CH340C, from the ESP32 family.

How big is the EncoderWiFiBT PCB?

The EncoderWiFiBT measures 34.8 × 34.8 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the EncoderWiFiBT?

29 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the EncoderWiFiBT design files?

From the AStrehlau/SmartEnconder-20xARGB repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the EncoderWiFiBT design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the EncoderWiFiBT 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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