Web16 feb. 2024 · The datasheet is recommending around 360 to 390 ohms but 330 ohms should also be ok to test with one side to your optocoupler output and the other to +5 volts. Add a 330 ohm resistor between pin 6 and pin 8 of your optocoupler. This will now create a logic 'high' for this output. Then add another 330 ohm resistor between pin 7 and pin 8 of … Web19 nov. 2024 · Hello, I’m experimenting with STM32F401CCU6 based board. As mentioned here it should be close to DISCO_F401VC target.. The problem is an attempt to program it from VS Code + Platformio (both newest versions) using St-Link.. The code is compiling and building, but not uploading to target.
Optocoupler for 5V PWM output not working - Question Mbed
Web11 jun. 2024 · Open-Drain Support in Software. To enable open-drain support, we’ll need to support three primary operations: Actively drive output low. Put the port in input mode with a pull-up (logical 1) Put the port in high-impedance mode (floating input with no pull-up or pull-down enabled) If the open-drain circuit has an external pull-up resistor ... Web20 apr. 2024 · mbedのGPIOをプルアップ / プルダウン / オープンドレインにする. sell. mbed. DigitalOut クラスの代わりに DigitalInOut クラスを使う。. #include "mbed.h" DigitalInOut resetPin(PC_6, PIN_OUTPUT, OpenDrain, 0); resetPin = 1; wait(0.5); resetPin = 0; OpenDrain の部分を PullUp, PullDown に置き換えると ... clarksville pharmacy ar
mbedのGPIOをプルアップ / プルダウン / オープンドレインにす …
WebThis is the handbook for Mbed OS 2. If you’re working with Mbed OS 5, please see the Mbed OS 5 documentation. For the latest DigitalInOut API, please see DigitalInOut. The DigitalInOut interface is used as a bi-directional digital pin, used to read the value of a digital pin when set as an input, or write the value when set as an output. WebOpen-drain output configuration can’t pull up the pin it can only pull down the pin. The open-drain output configuration of GPIO is useless until and unless it is provided with pull up capability. Open Drain GPIO. To make … clarksville physicians