// other
HX711 + Load Cell
24-bit ADC for load cells (weight)
€5.00
avg eur
2-wire serial
Pins
4
Specs
4
Libraries
2
Protocols
1
// wiring → esp32 devkit v1
VCC
3V3
EN
GPIO36
VP
GPIO39
VN
GPIO34
GPIO35
GPIO32
GPIO33
GPIO25
GPIO26
GPIO27
GPIO14
GPIO12
GND
GND
GPIO13
ESP32
WROOM-32
devkit v1
USB
VIN
5V
VCC
GND
GPIO23
GPIO22
SCL
GPIO1
TX0
GPIO3
RX0
GPIO21
SDA
GPIO19
MISO
GPIO18
SCK
GPIO5
SS
GPIO17
TX2
SCK
GPIO16
RX2
DT (DOUT)
GPIO4
GPIO2
GPIO15
sensor pin (left)
sensor pin (right)
unused
// pinout → esp32
| Sensor Pin | ESP32 Connection |
|---|---|
| VCC | 3.3V or 5V |
| GND | GND |
| DT (DOUT) | GPIO 16 |
| SCK | GPIO 17 |
// technical specs
Resolution
24-bit
Channels
2 (A=128/64x, B=32x)
Sample rate
10/80 Hz
Voltage
2.6–5.5V
// github libraries
// notes & warnings
Calibrate with known weight. Pair with strain-gauge load cells (1kg / 5kg / 20kg). Stable on 5V.
// related sensors · other
Submitted by caio.ricciuti@outlook.com
· Apr 26, 2026