|
- What does 3V3 or 1V8 mean? - Electrical Engineering Stack Exchange
While reading a datasheet for an IC I came across the pin voltages being presented as 3V3 or 1V8 What does this representation stand for?
- How to correctly power an ESP32-H2 board with a battery
I'd like to power my ESP32-H2-DevKitM-1 board with a 3 7 V, 2000 mAh Li-po battery For this I think I must use this pin: Battery-3V3 The above picture is from the Pin Layout section of the
- Converting universal AC to 3. 3 V DC @ 0. 1 A
I would seriously consider plugging in one of those tiny USB chargers for mobile phones, like the HTC chargers, and an LDO to bring the voltage down to 3 3 Volts, if this is a small run For larger runs, the same logic applies as used in the miniature mobile phone chargers: Use a switching step-down design, perhaps with a piezoelectric transformer instead of an inductive, if size is paramount
- Switching 3. 3V with 3. 3V signal - Electrical Engineering Stack Exchange
The ESP32C3 has a battery input and a regulated 3V3 output, and the DFPlayer takes 3 3V power, so that would seem to be a straightforward way to power the circuit
- How to switch best between two voltage sources (5V 3V3) for a . . .
How to switch best between two voltage sources (5V 3V3) for a "load" (e g a sensor in the application field or Arduino Raspberry Pi etc ) The basic setup is as follows: there are two voltage sources: 5V and 3V3 and based on a MCU OUTPUT should either be supplied with the 5V supply or 3V3 supply
- stm32 nucleo 3. 3V usage - Electrical Engineering Stack Exchange
When using an STM32 Nucleo powered by a 5V power supply, can I use its 3V3 pin to supply 50mA? Or do I need to use, for instance, a 3 3V linear regulator attached to my 5V power supply?
- Powering Components with ESP32 - Electrical Engineering Stack Exchange
The 3V3 output is just the output of the LDO on your ESP32 module, you can use it to power your 3V3 sensors, like the TSOP that requires 3V3 You can use the RC filter shown on datasheet page 2 to reduce power supply noise
- Raspberry Pi Pico 3. 3V_EN pin control voltage inquiry
The Raspberry Pi Pico seems to have a 3 3V_EN pin which is basically the 3 3V regulator enable pin (3V3_EN) pulled up to 5V through a 100K resistor internally I am confused how to use this pin using a 3 3V logic of the Raspberry Pi model 3 GPIO pins to turn on or off the regulator inside the Pico
|
|
|