A standard for electrical communication, RS-485 is used for Modbus communication with one or more devices.

MQTT is a lightweight messaging protocol for publishing and subscribing to events. Often used in IoT equipment.

Low Power Radio Alliance is a group who have defined a protocol that allows a small message (55 bytes) to be transmitted with low power via a modulation technology. This allows some battery powered devices to transmit for years. Great for places where you have no power. Effective range about 5km.

Almost plug and play, WiFi has been part of normal internet useage for decades. Each successively new version increases speed and capacity. Great for places where you have power as WiFi consumes a fair amount of power to transmit and receive. Effective range about 50m.

Grafana is a timeseries dashboarding and monitoring tool. It can be used to explore databases like InfluxDB and graphs can be shared.

A standard for electrical communication, RS-232 is used for serial communication with a single device.

Modbus is one of the original industrial protocols. It runs on two or four wires and can let a single device talk to one or more devices on a bus. It has been converted to TCP and can be used accross a network.

Balena is a service that includes all the tools you'd want to work with a fleet of internet connected devices. This works well to administrate our dashboard Raspberry Pis and other devices in the field.