Search found 513 matches
- Tue Aug 06, 2019 7:09 am
- Forum: General Discussion
- Topic: Small ESP32 Modul ( all include in new ESP32-PICO )
- Replies: 150
- Views: 204650
Re: Small ESP32 Modul ( all include in new ESP32-PICO )
Even if you are using an RF certified module, your system (the final device) still will require testing. You will save money though, because it will require less testing than a full FCC / IC / CE certification of the underlying transmitter.
- Mon Aug 05, 2019 7:47 am
- Forum: General Discussion
- Topic: Small ESP32 Modul ( all include in new ESP32-PICO )
- Replies: 150
- Views: 204650
- Sun Aug 04, 2019 7:33 pm
- Forum: General Discussion
- Topic: Small ESP32 Modul ( all include in new ESP32-PICO )
- Replies: 150
- Views: 204650
- Fri Feb 01, 2019 5:58 pm
- Forum: ESP-IDF
- Topic: Wear Leveling File System with Directory Support
- Replies: 6
- Views: 11470
Re: Wear Leveling File System with Directory Support
SPIFFS does not have directory support, but it can be easily implemented using SPIFFS metadata feature. I have SPIFFS with full directory support implemented in my MicroPython for ESP32 . LittleFS with full directory support is also implemented. It can be configured to run on top of Wear Leveling dr...
- Sat Jan 26, 2019 11:44 pm
- Forum: ESP-IDF
- Topic: Control the Timing of CS line ESP32 SPI
- Replies: 1
- Views: 4877
Re: Control the Timing of CS line ESP32 SPI
Configure SPI not to use hw CS. Then control the CS line from software...
- Fri Jan 25, 2019 7:51 pm
- Forum: General Discussion
- Topic: How to start external flash with SPI in esp32
- Replies: 4
- Views: 9432
Re: How to start external flash with SPI in esp32
Yes, it should not be too difficult to adapt an existing SPI eeprom driver or write your own based on datasheet...
- Fri Jan 25, 2019 9:38 am
- Forum: General Discussion
- Topic: How to start external flash with SPI in esp32
- Replies: 4
- Views: 9432
Re: How to start external flash with SPI in esp32
You are using the SPI Flash API for write/read, which is unrelated to the SPI Master API you have used to initialize the SPI bus.
You should write your own driver (or use an existing) to access the ST-25P80, which, BTW, is not a Flash chip, but SPI EEPROM.
You should write your own driver (or use an existing) to access the ST-25P80, which, BTW, is not a Flash chip, but SPI EEPROM.
- Tue Jan 15, 2019 8:53 pm
- Forum: ESP-IDF
- Topic: SPI: received data shifted by 1bit right
- Replies: 1
- Views: 5310
Re: SPI: received data shifted by 1bit right
Maybe you are using the wrong SPI mode. Try with mode 0.
- Mon Jan 14, 2019 10:47 am
- Forum: General Discussion
- Topic: running ESP32-D2WD at 240 MHz ??
- Replies: 3
- Views: 7755
Re: running ESP32-D2WD at 240 MHz ??
Why not use ESP32-PICO-D4? It is only slightly larger (7x7mm), but you can save some space because of the components integrated on it.
ESP32 always executes code from SPI-Flash (some code is transfered to IRAM).
ESP32 always executes code from SPI-Flash (some code is transfered to IRAM).
- Sat Jan 05, 2019 6:01 pm
- Forum: Hardware
- Topic: GPIO0 connected to GND makes the esp32 enter download mode
- Replies: 2
- Views: 12560
Re: GPIO0 connected to GND makes the esp32 enter download mode
GPIO0 must be high on reset not to enter the bootloader mode, after booting you can use it as any GPIO.
Why is it held low and how is it driving SSR, via transistor or directly?
You should put a pull-up resistor on GPIO0 so that it is in high state during reset.
Why is it held low and how is it driving SSR, via transistor or directly?
You should put a pull-up resistor on GPIO0 so that it is in high state during reset.