An end device consists of a sensor or actuator and a LoRaWAN communications node.
The sensor measures and outputs data while an actuator receives and acts on commands. The role of the LoRaWAN communications node is to transmit and receive data via a wireless LoRaWAN network, generally connected to the Internet.
In many cases, off-the-shelf devices consisting of a sensor and LoRaWAN communications node is suitable. In others, a custom approach is better. For example where:
- The off-the-shelf sensor isn’t already integrated with a LoRaWAN communications node.
- Some specific behaviour or logic from the device is required.
- A LoRaWAN communications node needs to be added to added to an existing device or actuator.
In these and other cases, our custom LoRaWAN communications node is recommended. The sensor or actuator can either be on board (integrated into a single enclosure) or standalone (connected with wires to the LoRaWAN communications node).
- Remote reading from water meters
- Battery voltage monitoring
- Remotely turning on or off something, for example a pump
- Rainfall reporting frequency proportional to the amount of rainfall
- Solution to monitor bin filling using an ultrasonic sensor
- Use any LoRaWAN frequency band
- Work with any type of sensor output- analogue, pulse or digital (I2C, SPI, UART, GPIO)
- Powered by an internal 3.3V battery or external power
- Power an external sensor
- An enclosure that reflects the operating environment
- Internal or external antenna
- Operate with custom firmware to deliver desired behaviour or logic
Our preferred chip is the S76S module from AcSIP which combines a Semtech SX1276 and a 32-bit ultra low power Cortex M0L MCU in a single enclosure. It has sufficient power and memory to run both the LoRaWAN network stack as well as custom firmware. Standard transmission power is 20 dBm.
Contact us to start the conversation about the first step of designing and prototyping custom hardware. After that, low volume manufacturing and high volume manufacturing follows.