I have an outdoor 4G modem/router running OpenWRT. I am trying to list and graph the temperature sensors in the modem and CPU if possible.
I should stress up front that I have no experience of OpenWRT so would appreciate explanations for a new user.
So far I have used PuTTY and followed the guide at https://openwrt.org/docs/guide-user/luci/luci_app_statistics to install the luci-app-statistics module. I did notice that should add collectd-app-thermal to the opkg install command.
I can see Statistics - Setup - General - Thermal and have ticked Enable this Plugin but no Graph appears for Thermal in the Statistics - Graphs tab.
What do I have to do next to provide a list of sensors that the graph could monitor?