Powering Gravity Sensors (SENXXXX) with ESP32-S3: 3.3V Pin Stability/Current Limits?
Nick.Bender 2025-10-27 19:16:59 20 Views0 Replies Hey DFRobot community,
I'm working on a remote, battery-powered IoT weather station using an ESP32-S3 board and two Gravity sensors (specifically the SEN0368 Temperature/Humidity and a generic SEN0xxxx Gas Sensor).
I was planning to power both sensors directly from the 3.3V output pin on the ESP32-S3 to save power and keep the wiring simple.
My precise question is: What is the typical stable current limit (in mA) I can safely draw from the 3.3V pin of a standard FireBeetle or similar DFRobot ESP32-S3 controller before I risk voltage ripple or component instability?
I know the general rule is about 50mA, but since the gas sensor might have short current spikes, I'd like to confirm the real-world limit based on your experience with these DFRobot boards before I add a dedicated LDO.
Thanks for any insights!
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