Vijgen, SanderSanderVijgenVandenryt, ThijsThijsVandenrytUllah, AsadAsadUllahDeferme, WimWimDefermeThoelen, RonaldRonaldThoelen2026-10-152026-10-152025979-8-3315-5487-3https://imec-publications.be/handle/20.500.12860/60548This paper describes the manufacturing of an automated 4-point resistance meter with wireless communication for fruit growth stretch sensors. With a 10mA current source and the ADS1115 component to measure the voltage, the device is able to measure resistance with a precision of ± 0.006Ω, which is more than accurate for daily monitoring of fruit growth. The ESP-NOW-based communication sends data up to 500m and can be powered up to 8 days with a 1000mAh lithium battery.engProceedings paper10.1109/metroagrifor66923.2025.11512552WOS:001838891900025