The latest set of PCB’s arrived today. Here’s the Pi Zero W with adapter to mount on the EmonTx4:
and another adapter for the Pi Pico:
There’s more on the Pi Pico here for those interested emonTx4 & Pi pico - #2 by TrystanLea
I also built up the single phase precision voltage sensor (without the integrated power supply) and the ACAC Voltage adapter to RJ11 converter:
It looks like the single phase precision voltage sensor without the power supply will be about £28 ex VAT (£34 inc VAT). The ACACadapter to RJ11 converter with an AC adapter is probably ~£12 ex VAT (£14.40 inc VAT), or ~£3 for the converter only.
Hopefully these will provide a good set of options at different price points and capabilities. I think it’s going to be good having the capability to support the different platforms: Pi3/4, Pi Zero, Pi Pico and ESP32 with the adapter boards it should provide more flexibility especially in these times of chip shortages. The intention is to provide the ESP32 and Pi Pico options with basic software examples to start for those happy to compile and upload code and then develop these options further over time. I dont think Glyn has had any luck sourcing Pi Zero’s so its likely that we will only be able to stock the adapter board for those who have spare Pi Zero’s already, at least initially until stock becomes available.
Manufacturing of the emonTx4 and emonVs is still ongoing, I will update with more news on that as soon as we know more.