
Pin mapping (HX711)
HX711 No. |
DT Pin (Data) |
SCK Pin (Clock) |
HX711 #1 |
GPIO26 |
GPIO14 |
HX711 #2 |
GPIO27 |
GPIO4 |
HX711 #3 |
GPIO32 |
GPIO25 |
- DIN (LCD) →
IO13
(Label: DIN)
- CLK (LCD) →
IO12
(Label: CLK)
- CS (LCD) →
IO10
(Label: CS)
- DC (LCD) →
IO46
(Label: DC)
- RST (LCD) →
IO3
(Label: RST)
- BL (LCD) →
IO8
(Label: BL)
- VCC →
+3.3V
- GND →
GND
// Pin definitions
#define TFT_CS 5
#define TFT_RST 22
#define TFT_DC 21
#define TFT_MOSI 23
#define TFT_SCLK 18
🖥️ 1.5-Inch SPI LCD Display:
LCD Pin |
Function |
ESP32 GPIO |
DIN |
SPI MOSI |
GPIO23 |
CLK |
SPI Clock |
GPIO18 |
CS |
Chip Select |
GPIO5 |
DC |
Data/Command |
GPIO21 |
RST |
Reset |
GPIO22 |
BL |
Backlight |
GPIO19 |
VCC |
Power |
3.3V |
GND |
Ground |
GND |
To be noted
- check if the v reg can provide the max current