Datasheet

ESP32 Hobby Servo Driver

FEATURES

• Drives up to fifteen Servos
• Onboard linear 3.3 Volt DC regulator via AZ1117E

POWER SPECIFICATION

• 5 to 6 Volt Operating Voltage
• 2 Amp servo power rail capacity (Whole board)

DESCRIPTION

Take control of your Robotics, and smart home projects with this WiFi enabled Hobby Servo Driver. The Open MYR ESP32.24 is a WiFi Hobby Servo all-in-one package. The ESP32.24 combines everything you need for control of up to fifteen hobby servos over WiFi utilizing an Espressif ESP32. The ESP32.24 is preloaded with Open MYR firmware for out of the box functionality, just power up and go.

APPLICATIONS

• Hobby projects
• Robotics
• Smart Home

PACKAGE

TODO

Pin Mapping

ESP32

ESP pin	Board
3V3 ESP	3.3V supply
EN
GPIO 4	Servo D
GPIO 12	Servo 7
GPIO 13	LED Indicators
GPIO 14	Servo 6
GPIO 15	Servo 8
GPIO 16	Servo E
GPIO 17	Servo F
GPIO 18	Servo C
GPIO 19	Servo B
GPIO 21	Servo A
GPIO 22	Servo 9
GPIO 25	Servo 3
GPIO 26	Servo 4
GPIO 27	Servo 5
GPIO 32	Servo 1
GPIO 33	Servo 2
RXD Serial	Rx
TXD Serial	Tx
GND	Ground connection

Servo interface

Interface	ESP pin
Servo 1	GPIO 32
Servo 2	GPIO 33
Servo 3	GPIO 25
Servo 4	GPIO 26
Servo 5	GPIO 27
Servo 6	GPIO 14
Servo 7	GPIO 12
Servo 8	GPIO 15
Servo 9	GPIO 22
Servo A	GPIO 21
Servo B	GPIO 19
Servo C	GPIO 18
Servo D	GPIO 4
Servo E	GPIO 16
Servo F	GPIO 17

Programming Port

The two by three 0.1" pin header programming port is designed to facilitate reprogramming of the ESP32. The ESP may be programmed while being powered from VCC or the 3V3 pin. The programming port implements the Auto program interface, utilizing DTR and RTS to control the EN and GPIO 0 pins.

Pin	Function
3V3	3.3 Volt DC
TX Serial	Tx
RX Serial	Rx
RTS	Auto Program Interface
DTR	Auto Program Interface
GND	Ground connection