Protocol Appendix A documents only the ADC reference voltage constant;
the PCB voltage divider must also be applied (from Thetis source):
- Boards 1-3 (Hermes/Angelia): ×(4.7+0.82)/0.82 ≈ 6.73, Vref=3.3V
- Board 5 (Orion MkII): ×(22+1)/1.1 ≈ 20.9, Vref=5.0V
For board type 5, supply voltage is measured via UserADC0 (bytes 57-58),
not the supply_volts field (bytes 49-50), matching Thetis behaviour.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Per Appendix A of openHPSDR Ethernet Protocol v4.3:
- Boards 1,2,3 (Hermes/Angelia): V = ADC/4095 * 3.3 (was always using this)
- Boards 4,5 (Orion/Orion MkII): V = ADC/4095 * 5.0 (was wrong, showing ~66% of real value)
- Board 0 (Atlas) has no supply voltage measurement per protocol spec
("not Atlas bus systems")
- Boards 6 (Hermes Lite), 10 (Saturn): constant not documented, hide Supply field
ADCToSupplyVolts now takes BoardType and returns -1.0 for unsupported boards.
DoUpdateStatus omits the Supply field when -1.0 is returned.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
ew8bakandClaude Sonnet 4.6