Delighted to get a properly finished product well packed and delivered quickly! Nicely soldered in a very clean 3D printed case that closes with a very comforting but easy 'snap'. I wonder if Colin would offer a case with embedded initials for an extra sum?
I ordered this to test with a BN series common negative charge controller - it works perfectly! It arrived pre-programmed with ESP-Link firmware, setup was as simple as connecting to the ESP wifi, browsing to the ESP's web interface on http://192.168.4.1 and setting the name and password for the network I wanted to connect it to. I'm using socat on linux to connect the virtual COM port and Colin's scripts to dump data into InfluxDB for graphing in Grafana.
This is a well designed solution and I look forward to purchasing more when they're available.