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firmware

Errno 121 Remote IO error on Pi Zero W
Firmware

2 Tested Solutions – [Errno 121] Remote I/O error

This article mentions two tested solutions to solve [Errno 121] Remote I/O error when using I2C via Python on a Raspberry Pi.

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esp32 4g hotspot debug log
Firmware

ESP32 crashes on esp_netif_internal_dhcpc_cb() – SOLVED

The ESP32 crashes on esp_netif_internal_dhcpc_cb() when being used as a NAT router with cellular modem and Wi-Fi or ethernet – SOLVED!

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port esp32 esp32-c3 pinout and gpios
Firmware

Port ESP32 Code to ESP32-C3 – Notes

Notes on how to port ESP32 code to ESP32-C3. Based on ESP-ADF ES8388 driver code ported to work with ESP32-C3 audio applications.

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esp32 4g gateway gen1 sim7600 4g modem ethernet rs485 enclosure features
ESP32 4G Gateway (Gen 1)

ESP32 SIM7600 Cellular Modem Interface using Arduino IDE

With example code, this article covers ESP32 SIM7600 4G LTE cellular modem interfacing using Arduino IDE. Hardware used is ESP32 Gateway.

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esp32 modem command timeout value setting for esp_modem_dte_send_cmd
ESP32 4G Gateway (Gen 1)

esp_modem_dte_send_cmd: process command timeout – SOLVED

ESP32 PPPoS modem “esp_modem_dte_send_cmd(): process command timeout” error, causes, and some solutions that work with SIM7600 and A7670.

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STM32 usb device stm32cubemx example clock settings
STM32 Firmware

STM32 USB Device Not Recognized – Solved!

STM32 “USB device not reognized” and “failed to read USB device descriptors” are very common issues. We list the most common solutions here.

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1162 mmu set 00010000, pos 00010000 boot loop esp32 solution
ESP32 Firmware

1162 mmu set 00010000, pos 00010000 ESP32 boot loop – SOLVED

Solutions for ESP32 boot loop error: 1162 mmu set 00010000, pos 00010000 1162 mmu set 00020000, pos 00020000 1162 mmu set 00030000, pos 00030000

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ESP32 NTP and DS3231 RTC
ESP32 Firmware

ESP32 NTP and DS3231 RTC

This article illustrates an easy way to sync ESP32 NTP and DS3231 RTC time so that ESP32 can use the RTC chip seamlessly in an application.

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firmware-development-blog-articles
ESP32 FirmwareFirmware

Base64 Encoding and Decoding on ESP32

The ESP-IDF contains functions for enabling Base64 encoding and decoding on ESP32. The encoding and decoding functions are actually built into the ESP32 ROM. The functions are accessible by using …

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