Hermes board to Filter
Mehmet Raşid ÖĞÜNÇ
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Marc OLANIE
Hi Mehmet
This « black board » is an Hermes (original) board. It won’t fit in an Hermeslite box as it is approximately twice the size or the HL2. And it will
be hard to control the N2ADR filter without modification, as the Hermes filter switching is based on a SPI (codename Alexiares or Alex protocol) and the HL2 uses an I2C bus. You’ll need to translate one protocol into another one, using a microcontroler.
It will be easier to build an Alex interface to drive any kind of LPF or BPF depending on your needs
Just an example of such an « Alex compliant » board
https://github.com/F6ITU/Alexandrie
The Hermes board you have is a « full 16 bits 122 MSPS » SDR, covering from 0.1 to 55 MHz, using the same « protocol 1 » you use with your Hermeslite, and delivering 500 mW output. Definitely a very good transceiver
VY 73’
De Marc f6itu
De : herme...@googlegroups.com <herme...@googlegroups.com>
De la part de Mehmet Raşid ÖĞÜNÇ
Envoyé : jeudi 10 juillet 2025 12:58
À : Hermes-Lite <herme...@googlegroups.com>
Objet : Hermes board to Filter
The hermes-lite2 I bought in 2023 broke down due to a mistake. I gave 12 volts to the ptt input. Right now the RX is 80% low but the tx is working. I wonder if this black card from apache Laps, produced in 2012, will fit my N2ADR filter and box? Will there be any problems with its operation?
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