I am going to have a small series of Raduino32 v4.
The board can directly replace the original Raduino in the uBitx v5 and v6, reusing the TFT screen.
Instead of Arduino Nano, you will equip an ESP32 and:
Polarity protection circuit, voltage measurement and consumption measurement.
?2 sockets for 2xADS1115 (8 analog inputs). The S-meter, SWR meter, etc. can be connected.
?1 socket for a MCP23017 module (16 I / O, via I2C)
1 socket for a PCA9685 module (16 x PWM outputs)
2 sockets for the two serial ports (CAT and debug)
Connector for DS18B20 temperature probes.
The design is intended so that the original HFSignals box can be used.
I estimate that the final design will be finished within a week. If anyone is interested or has any suggestions on the design, they are welcome.
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The cost of the PCB with the soldered SMD components would be around € 7 and the rest of the THT components another € 7 without soldering (except LCD and ESP32) plus shipping costs.
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I leave the outline and look almost final.
Saludos,
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