Search found 2 matches

by lakindumuhandirumge
Thu Jun 20, 2024 6:16 am
Forum: Hardware
Topic: Can I get 5V output from ESP32S 38P/V4?Goouuu Expansion Board
Replies: 0
Views: 705

Can I get 5V output from ESP32S 38P/V4?Goouuu Expansion Board

Hi guys! I am trying to program HC-SR04 Sensor to measure distance and send the measurements through LoRa. I have an ESP32-S3 board but since the sensor requires a 5V power supply to operate, I would need the expansion board since the ESP32-S3 board can only provide 3.3 output voltage. Will using th...
by lakindumuhandirumge
Fri Jun 07, 2024 3:44 am
Forum: Hardware
Topic: Is it smart to use a HC-SR04/Lidar sensor with the esp32 board (wireless through meshtastic) for a manhole Cover
Replies: 0
Views: 441

Is it smart to use a HC-SR04/Lidar sensor with the esp32 board (wireless through meshtastic) for a manhole Cover

I am trying to hear some opinions about the HC-SR04 ultrasonic sensor/Lidar sensor since I am planning to purchase them for a remote manhole cover system. I have read online about instances where there are erroneous results produced by the ultrasonic sensor and the need to ensure that any faulty rea...