// comms
LoRa SX1276 (Ra-02)
Long-range sub-GHz radio (LoRa modulation)
€6.00
avg eur
no image
SPI
Pins
8
Specs
4
Libraries
2
Protocols
1
// wiring → esp32 devkit v1
VCC
3V3
EN
GPIO36
VP
GPIO39
VN
GPIO34
GPIO35
GPIO32
GPIO33
GPIO25
DIO0
GPIO26
GPIO27
RST
GPIO14
GPIO12
GND
GND
GPIO13
ESP32
WROOM-32
devkit v1
USB
VIN
5V
GND
GPIO23
MOSI
GPIO22
SCL
GPIO1
TX0
GPIO3
RX0
GPIO21
SDA
GPIO19
MISO
MISO
GPIO18
SCK
SCK
GPIO5
SS
NSS / CS
GPIO17
TX2
GPIO16
RX2
GPIO4
GPIO2
GPIO15
sensor pin (left)
sensor pin (right)
unused
// pinout → esp32
| Sensor Pin | ESP32 Connection |
|---|---|
| VCC | 3.3V |
| GND | GND |
| SCK | GPIO 18 |
| MOSI | GPIO 23 |
| MISO | GPIO 19 |
| NSS / CS | GPIO 5 |
| RST | GPIO 14 |
| DIO0 | GPIO 26 |
// technical specs
Frequency
433 / 868 / 915 MHz (region!)
Range
2–10 km LoS
Bitrate
0.3–37.5 kbps
Voltage
3.3V (NOT 5V tolerant)
// github libraries
// notes & warnings
Pick the right frequency for your region (EU 868, US 915, Asia 433) — wrong band = illegal. Antenna is mandatory; transmitting without one can damage the chip. For LoRaWAN use RadioLib + arduino-lmic.
// related sensors · comms