I'm a bit late to the party. Thanks to Espressif for the antenna design and to @Prasad for the KiCad footprint. JLCPCB SMT service can now assemble ESP32-PICO-D4 so I am looking to replace modules with the ESP32 SiP to automate assembly of a few personal projects. I don't have experience with antenn...

While reading the schematic of the ESP32-PICO-KIT (https://dl.espressif.com/dl/schematics/esp32-pico-kit-v4.1_schematic.pdf), I noticed that MTDI is held high using a 10k resistor (R23). However, the ESP32-PICO-D4 datasheet (https://www.espressif.com/sites/default/files/documentation/esp32-pico-d4_d...

Digging a bit, I found a comment on this https://github.com/espressif/esp-idf/blob/4a558131eaa4d81d122edd15d4288968e5846994/components/driver/spi_master.c#L323-L324 : The hardware looks like it would support this, but actually setting cs_ena_pretrans when transferring in full duplex mode does absolu...

Hi! According to ESP-IDF documentation, using cs_ena_pretrans ( https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/spi_master.html#_CPPv4N29spi_device_interface_config_t15cs_ena_pretransE ) only works on half-duplex transactions. However, my device works in full-du...

Shame on me. I correctly set pull up but forgot to initialize pull_down_en to 0.

Hi, I attached interrupts to GPIO32/GPIO33 with internal pull-up to detect button presses (NEGEDGE) similarly to the gpio_example ( https://github.com/espressif/esp-idf/blob/master/examples/peripherals/gpio/main/gpio_example_main.c ). odroid-go-gpio.png However, the ISR is not always triggered. In f...

It would be helpful to have a quick answer from an Espressif engineer since we don't have access to the implementation.

Does ESP-IDF handle client certificates with an embedded private key? Client certificates are used for both SSL and WPA-Enterprise. For the former, these are declared as follows in components/tcp_transport/include/esp_transport_ssl.h : /** * @brief Set SSL client certificate data for mutual authenti...

Thanks!

Does uart_read_bytes() yield so other tasks can run before the timeout? If not, what is the best strategy to prevent starvation? My goal is to read GPS data as soon as available (as done here: https://github.com/nkolban/esp32-snippets/blob/master/hardware/gps/gps/main/gps.c) without blocking other t...