TECHBASE company designed an extended version of Raspberry Pi Compute Module 4 based devices, ModBerry 500-CM4-PM series for better power management in changing conditions of industrial applications. With the use of GPIO the module can manage boot, sleep mode or safe shutdown of the device in terms of unexpected drop in the power network with help of built-in ESP32 module and Arduino environment.
In the last few years developers marketed a wide range of ARM-based development boards, lacking in enhanced power management, especially sleep and wake up modes, commonly used in PC-grade computing. These boards are not adjusted for battery power supply, so it’s natural that sleep/wake functions should be implemented. In connection with the development of solutions based on Linux-SBC, key factor is adding sleep modes to any remote installation
With built-in algorithms and the possibility to program on your own, the TECHBASE’s sleep/wake addon module can wake the device using a scheduler/timer. The module itself is based on ESP32-WROVER, used in the Moduino X series. ESP32 as a lightweight and low-powered solution is a perfect aid system for Raspberry Pi. Another option is wake on external triggers, e.g. change of input state, etc. All the options for sleep, shutdown and wake can be configured for various scenarios to ensure constant operation of devices, safety of data and continuity of work in case of power failure in any installation.