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Investigation of 433MHz RF design started (2022-08-17)

A project log for Linkia

Tiny Linux handheld with LoRa+WiFI+BT connectivity.

reimu-notmoeReimu NotMoe 10/21/2022 at 07:130 Comments

Original date: 2022-08-17

Related tweets: [0] [1] [2]

In the previous logs and tweets, I said that I'm going to remove the 433MHz LoRa support. But who truly wants to do that?

Since the 433MHz LoRa antenna was a complete failure, I designed a dedicated RF test PCB in exactly the same shape to test different antennas and the impedance match parameters & possible placements of them.

This PCB contains antenna slots of both 433MHz and 2.4GHz, a simple PIC32MM MCU, and the SiP LoRa module. Future tests will be conducted by a proprietary software designed by me on the PC.

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