europi
by allen-synthesis
92 parts · 41 × 110 mm
heypcb · Circuit World · Open hardware
Walky_Talky
by zmuhammad07github.com/zmuhammad07/Walky_Talky
Walky-Talky — LoRa voice communication system built on STM32 with a custom KiCad PCB. Features I2S digital mic input (INMP441), Codec2 voice compression (96kbps → 1.2kbps), RYLR998 LoRa RF at 915MHz, 12-bit DAC audio output, and FM-style channel selection via rotary encoder. All peripheral I/O driven by STM32 HAL DMA. Work in progress.
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- Board size
- 57 × 60 mm
- Parts
- 49 parts
- Nets
- 74 nets
- Licence
- MIT
Imported from a public repository by zmuhammad07. View the source
MIT — MIT: reuse and modification are permitted, with attribution to the original author.
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