EmonTH 1.5 custom assembly

[ksmster (Sergii Kabashniuk)]

Hello
I can’t find some information that I need to finish EmonTH custom assembly from scratch. Can you help me?

1. What kind of oscillator is used? Internal like RFM69Pi_V3 (external is just a fake), external 8Mz, external 16 Mz. If 16Mz is it not too high for battery power node?
2. What kind of boot-loader is used?
3. What kind of fuses configuration is used?
4. What command is used to flash boot-loader?
5. What kind of processor configuration is used for ArduionoIDE to program EmonTH

I expected to find something similar to sections “Flashing the Bootloader” and “Modified OptiBoot Bootloader”
from RFM69Pi V3 - OpenEnergyMonitor Wiki
but I couldn’t find it.

[glyn.hudson]

@ksmster

What kind of oscillator is used? Internal like RFM69Pi_V3 (external is just a fake), external 8Mz, external 16 Mz. If 16Mz is it not too high for battery power node?

External 16Mhz is used on the emonTH design

@ksmster

What kind of boot-loader is used?

Standard Arduino Uno optiboot

@ksmster

What kind of fuses configuration is used?
What command is used to flash boot-loader?

Standard uno fuses.

Either compile .ino using Arduino IDE or PlatformIO or upload precompiled using avrdude:

$ avrdude -v -c arduino -p ATMEGA328P -P /dev/ttyUSB0 -b 115200 -U flash:firmware.hex

GitHub - openenergymonitor/emonTH: An open-source wireless temperature and...

@ksmster

What kind of processor configuration is used for ArduionoIDE to program EmonTH

Standard Arduino Uno

@ksmster

I expected to find something similar to sections “Flashing the Bootloader” and “Modified OptiBoot Bootloader” from https://wiki.openenergymonitor.org/index.php/RFM69Pi_V3but I couldn’t find it.

The RFM69Pi is very different from the emonTH, it uses internal 8Mhz.

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Good Luck!