Search found 1181 matches
- Fri Nov 24, 2017 8:29 am
- Forum: General Discussion
- Topic: Mysterious voltage drop when ESP32 board is connected
- Replies: 10
- Views: 75
Linear regulation (including the solution with resistors you chose earlier, given you choose resistors low enough to work) will always burn off the excess voltage as heat; no way around that. Look into switched mode power supplies for something that generates less hear; you can get modules like the ...
The ESP32 has a built-in 8-bit DAC; if you don't mind the not-really-HiFi quality of that you should be able to get away with an audio amp connected to this. Alternatively, for better sound quality, you can use an external I2S codec and amp.
- Wed Nov 22, 2017 10:21 am
- Forum: ESP32 Arduino
- Topic: Interrupts and cores: can I free one core of any interrupts?
- Replies: 1
- Views: 34
By default, everything runs on core 0. Core 1 should not have any interrupts out-of-the-box except for two: the FreeRTOS tick interrupt and the interrupt that is used to synchronize D-port accesses (workaround for a hw issue). You can disable the tick interrupt on CPU 1 if you also disable the idle ...