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A project log for digital-walkie-talkie

long range, low power, modular

Christoph TackChristoph Tack 09/16/2020 at 19:430 Comments

Commercial products

Kiwi-tec LAP-E01

Prior art

nRF24 based

  1. Long Range Arduino Based Walkie Talkie using nRF24L01 : many similar projects, all using the RF24Audio library.

RFM12 based

  1. Walkie Talkie Duino using RFM12B "open source" (only to the Kickstarter backers).

RFM22 based

Codec2WalkieTalkie

Analog FM based

  1. DRA818V analog FM module (lots of harmonics, will need a license to operate)
  2. Auctus A1846S : HamShield (by Casey Halverson), also available in Mini version.
    1. HamShield on Tindie
    2. Kickstarter
    3. Hackaday.io
    4. Instructables
    5. Github
    6. InductiveTwig

Comparable projects

KISS modem interface

LoRa

HamShield LoRa (by Casey Halverson)

STM32

ESP32

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