Electronic, 3D printing and embedded programming
OTA (Over the Air) update is the process of uploading firmware to an ESP module using a Wi-Fi connection rather than a serial port. Such functionality becomes extremely useful in case of limited or no physical access to the module.
In this article we are going to see the OTA updates with the Arduino IDE, firmware, filesystem, signed and unsigned.
An important features that simplify the sharing of firmware (and It is used by the most productor) is to generate pre-compiled binary file with only the sketch part (or filesystem).
In this article we are going to generate filesystem binary file and we try to flash esp8266 with Espressif Download Tool.
An important features that simplify the sharing of firmware (and It is used by the most productor) is to generate pre-compiled binary file with only the sketch part (or filesystem).
In this article we will see how to generate the binary firmware and how to sign it.
ESP8266, a little guide on how to use this low cost but powerful microcontroller with WIFI integrated.
Pinout, specifications and IDE configuration to start and programming your esp-12 and esp-07 variants.
LittleFS is recently added and focuses on higher performance and directory support, but has higher filesystem and per-file overhead.
When you create a new IoT project probably you need to connect microcontroller to a battary power source, but if you don’t use a power saving options your battery will run out in no time.
As a lot of IoT microcontroller, WeMos D1 mini have some power saving mode.
The types are modem sleep, light sleep and deep sleep.
WeMos D1 mini have 2 UART, one on dedicated pins and a transmit-only UART that can be enabled on GPIO2 (D4), It’s very usefully for debug.
Serial Peripheral Interface Flash File System, or SPIFFS for short. It’s a light-weight file system for microcontrollers with an SPI flash chip. The on-board flash chip of the ESP8266 has plenty of space for your files.
WeMos D1 mini, a little guide to use this low cost but powerful microcontroller with WIFI integrated.
Specification and IDE configuration to start use It.
