STEVAL-IAS003V1 is a low-power counter demonstration board with 1.6µA consumption, 3-digit LCD glass, 2 buttons, CR1220 battery, minimum external components, single-layer PCB and RoHS compliance.
The STEVAL-IASO03V1 is a demonstration board intended as an example for applications requiring a directly-driven LCD with programmable functionality. It targets areas such as the medical and healthcare fields, specifically for battery-operated counters and meters.
The design focuses on low power consumption by utilizing the STM8L101xx microcontroller in active-halt mode, awakened regularly by an auto wake-up timer. This approach achieves an average current consumption of below 1.5 µA (including direct LCD drive) at a refresh rate of 18 Hz.
The board operates with a 18 Hz refresh rate.
The counter is operated by a CR1220 battery.