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Penguino-STM32WL-LoRa-E5

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.

About the Penguino Feather breakout

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.

Penguino-STM32WL-LoRa-E5 Current version: 0.1

Board requirements are standard:

  • 6mil traces/clearance
  • 0.3mm drill

Penguino-STM32WL-LoRa-E5-back

Specs (SoC):

  • 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

Specs (LoRa-E5 module):

  • 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.

License:

  • Hardware license: CERN-OHL-S v2
  • Software license: under MIT unless otherise indicated
  • Documentation license: CC BY-SA 4.0 International.

OSHW License

Open Source Hardware

This board is an OSHWA approved design: AZ000003

Contact:

If you have any question or comments please feel free to open an issue (or a discussion or drop me a message at @azerimaker.

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