STMicroelectronics STEVAL-HARVEST1 Energy Harvesting Expansion Board
STMicroelectronics STEVAL-HARVEST1 energy harvesting expansion board is a solar-powered shield for the STM32 NUCLEO-WL55JC1 development board. This expansion board features a solar panel and ceramic capacitors for energy storage, enabling battery-free operation. The STEVAL-HARVEST1 expansion board features various sensors, including STTS22H for temperature sensing, LIS2DU12 for acceleration measurement, STHS34PF80 for motion detection, and SHT40 for humidity and temperature. These sensors support LoRa communication via STM32WL, without requiring an external power management circuit. This board is RoHS-compliant, equipped with a Morpho connector, and ideal for environmental monitoring, energy harvesting, and low-power wireless applications.
Features
- Energy harvesting board, based on a solar panel and sensors
- STTS22H, LIS2DU12, STHS34PF80, and SHT40 mounted on the board:
- STTS22H sensor to measure temperature with ±0.5°C accuracy
- LIS2DU12 sensor to measure acceleration with selectable full scales of ±2g, ±4g, ±8g, ±16g
- STHS34PF80 sensor to detect the presence and motion of an object
- SHT40 sensor to measure relative humidity and temperature from Sensiron
- Sends LoRa packets using only solar energy, enabling battery-free operation
- STM32WL microcontroller manages energy via a ceramic capacitor and handles LoRa radio connectivity without an external PMIC
- The packet consists of data from sensors (STTS22H, LIS2DU12, STHS34PF80, SHT40) mounted on the STEVAL-HARVEST1
- Compatible with STM32 NUCLEO-WL55 board
- Equipped with a Morpho connector
- RoHS compliant
Applications
- Environmental monitoring
- Energy harvesting
- Low-power wireless systems
Functional Block Diagram
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