ESP32-Controlled Servo Array with Muscle Sensor Input

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Circuit Documentation

Summary

The circuit in question is designed to interface an ESP32 microcontroller with multiple servo motors and an Advancer Muscle Sensor V3. The ESP32 is responsible for processing signals from the muscle sensor and controlling the servo motors accordingly. A 9V battery powers the circuit, with a 7805 voltage regulator ensuring a stable 5V supply for the servos and the muscle sensor. The ESP32 is powered directly from the battery's voltage, suitable for its VIN pin.

Component List

ESP32

Description: A versatile microcontroller with Wi-Fi and Bluetooth capabilities.
Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, VIN, 3V3, D15, D2, D4, RX2, TX2, D5, D18, D19, D21, RX0, TX0, D22, D23, BOOT.

Servo Motors

Description: Actuators that can be precisely controlled for position.
Pins: gnd, vcc, pulse.

7805 Voltage Regulator

Description: A voltage regulator that outputs a stable 5V from a higher voltage input.
Pins: Vin, Gnd, Vout.

Advancer Muscle Sensor V3

Description: A sensor that detects muscle activity.
Pins: +Vs, GND, -Vs, SIG.

9V Battery

Description: A standard 9V battery used to power the circuit.
Pins: -, +.

Wiring Details

ESP32

GND connected to the negative terminal of the 9V battery.
VIN connected to the positive terminal of the 9V battery.
D25 connected to the SIG pin of the Advancer Muscle Sensor V3.
D26, D27, D14, D12, D13 connected to the pulse pins of the servo motors.

Servo Motors

vcc pins connected to the Vout pin of the 7805 voltage regulator.
gnd pins connected to the Gnd pin of the 7805 voltage regulator.
pulse pins connected to the respective control pins on the ESP32 (D26, D27, D14, D12, D13).

7805 Voltage Regulator

Vin connected to the positive terminal of the 9V battery.
Gnd connected to the negative terminal of the 9V battery.
Vout provides 5V to the vcc pins of the servo motors and the +Vs pin of the Advancer Muscle Sensor V3.

Advancer Muscle Sensor V3

+Vs connected to the Vout pin of the 7805 voltage regulator.
GND connected to the Gnd pin of the 7805 voltage regulator.
SIG connected to the D25 pin of the ESP32.

9V Battery

+ connected to the Vin pin of the 7805 voltage regulator and the VIN pin of the ESP32.
- connected to the GND pin of the ESP32 and the Gnd pin of the 7805 voltage regulator.

Documented Code

No code was provided for the microcontroller. The documentation of the code would typically include a description of the functionality, setup and loop functions, and any functions or libraries used to control the servos and read the muscle sensor data. Since no code is available, this section cannot be completed.