Seeedstudio's LoRa-E5 STM32WLE5JC module was recently announced, and I took the liberty of designing a Penguino Feather breakout board for it. Hopefully OSHW community would benfit from it.
Managed to fit everything on a +2 layer (H1.6mm) low-cost PCB. Careful design choices allowed to have a good GND plane on the back to to achieve good (theoretical) RF performance.
Current version: 0.1
Board requirements are standard:
- 6mil traces/clearance
- 0.3mm drill
- STM32WLE5JC Wireless SoC
- ARM Cortex M4 ultra-low-power MCU
- Integrated SX1262 RF transciever
- Frequency range: 150 MHz to 960 MHz.
- Modulation: LoRa®, (G)FSK, (G)MSK and BPSK
- Transmitter power: programmable up to +22 dBm
- Frequency range: EU868/US915/AU915/AS923/KR920/IN865 (high-band design). FCC and CE Certified
- Ultra-low Power Consumption: as low as 2.1uA sleep current (WOR mode)
- High Performance: TXOP=22dBm@868/915MHz; -136.5dBm sensitivity for SF12 with 125KHz BW
- Long Distance Use: 158dB link budget
- Size: 12mm * 12mm * 2.5mm 28 pins SMT
- For further specs plese see the respective product pages.
If you have any question or comments please feel free to open an issue discussion or drop me a message at @azerimaker.
- Hardware license: CERN-OHL-S v2
- Software license: under MIT unless otherise indicated
- Documentation license: CC BY-SA 4.0 International.