What is it? These add-in contains various User Defined Functions. They can answer the following Where is the Sunday in London on Friday afternoon in 2020? What is the wetbulb for a given humidity? How big should my duct / compressed air […]
This inverter has a WiFi connection and opens ports 80 (password protected) and 502 (modbus). It’s possible to read the modbus registers. There’s a handy script that’s done all the hard work. This can import into Influx, as shown below (via grafana. […]
This works for Grafana v5. Grafana v6 has removed this functionality for security reasons. This explains how I implemented a previously outlined solution, in a step-by-step fashion. I initially struggled to get this running. There’s the method that worked. Overview The goal […]
I’ve previously used EmonCMS to log power and energy data from a IotaWatt / EmonTx system. This works well, but I’ve been looking for a flexible and fast alternative. The combination of IotaWatt, InfluxDB and Grafana look to provide this. My experiences […]
This post is a collection of tips, in no particular order. It follows on from Iotawatt, InfluxDB and Grafana Setup which is a step-by-step. Do that first, then tweak with these. Snippets for Influx # Delete a CT delete from iotawatt where ct=~/Circuit.*/ […]
Software Library and Pins for LoRa V2.1_1.6 Site from seller (copied below) shows: Lora, operating on SPI: 26 = DI0/IO0 23 = IRQ/RESET 18 = NSS/SEL (Slave select?) 5 = SCK (clock?) 27 = MOSI 19 = MISO SD Card, also on […]
Like every man and this dog, I’m going to build a battery powered IoT module. Ideally it will Run for >1 year on battery (solar is an option, but an extra complication) Use WiFi or LoRa or radio to wirelessly transmit. […]