STM32WLE5JC-based LoRaWAN module, 15×15mm castellated LCC-50
lorawan sub-ghz stm32wl at-command rui3
| field |
value |
| id |
modules/rakwireless/rak3172 |
| kind |
module |
| vendor |
rakwireless |
| MPN |
RAK3172 |
| revision |
1.2.0 |
| lifecycle |
stable |
Pin map
| pin |
exposed as |
alt_functions |
| PA0 |
pin1 |
gpio, uart_rx |
| PA1 |
pin2 |
gpio, uart_tx |
| PA2 |
pin3 |
gpio, uart2_tx |
| PA3 |
pin4 |
gpio, uart2_rx |
Package
| field |
value |
| type |
castellated-LCC-50 |
| pin count |
50 |
| IPC name |
LCC50P15X15X25-50N |
| RF certifications |
FCC, CE, IC, KC |
| dimensions |
15.0 mm×15.0 mm×2.5 mm |
Electrical
| field |
value |
| VCC |
3.3 V nominal; 2.0–3.6 V range |
| Current draw |
50.0 mA active; 1.6 µA sleep |
| Logic |
cmos_3v3; 3.3 V; NOT 5V tolerant |
KiCad refs
| field |
value |
| symbol |
hw-registry:RAK3172 |
| footprint |
hw-registry:RAK3172_LCC-50 |
Datasheet
Tested
| field |
value |
| status |
production-tested |
| by |
rnd@southerniot.net |
| date |
2026-02-14 |
Evidence: Deployed in 30+ in-field LoRaWAN sensor nodes; 12+ months runtime.
Description
RAKwireless RAK3172 — sub-GHz LoRaWAN module built around the ST STM32WLE5JC SoC. Castellated 15×15 mm LCC-50 footprint. Ships from the factory with the RUI3 AT-command firmware on UART2 at 115200 baud but is field-reprogrammable with the open RAKWireless STM32WLE source.