Dec 30 2019
This is a short post which shows how to create a wireless WEB server on an ESP8266. It uses a microcontroller, in this case an STM32F103C8T6 (BluePill ) to send commands and control the ESP8266 Here is what the wiring looks like:. You can get the Fritzing code for this image here. …
Dec 27 2019
If you read my last post on Solar Power System Monitoring with an Arduino you might be wondering if that circuit could be enhanced a bit. Say, change the LCD to an OLED and add wireless (WEB server) capability? I was not happy to have to go out and look at the device when I …
Jan 21 2018
I recently coded a Python script for Decoding an ESP8266 Firmware Image. It’s the first part of my quest to create a Linux tool for creating a single flash image. More specifically, the script will decode a single binary image or a ‘combined’ image. A combined image (single flash image) can be created with the …
Jul 03 2017
If you have been reading my posts lately, you will notice that I have been working a lot with the ESP8266 wireless module. To make it easier to work with, I made an ESP8266 DIY Programmer Cradle. Here is what it looks like (without and with the ESP8266 plugged in): …
Jun 30 2017
I created an app (apk) to run MicroPython WebREPL on Android. Imagine you have your ESP8266 (with the MicroPython firmware) in some location where the only access to it is via a wireless connection. If you need to access and change/control it, you will need WebREPL. Of course, a wireless enabled laptop would get access …
Jun 28 2017
To enhance the capabilities of the ESP8266 there are various firmware packages available. In my last post, I showed how to install NodeMcu which uses eLua. I am a big fan of the Python programming language, so I was very happy to see a Python version for the ESP8266. The ESP8266 MicroPython Firmware is available …
Jun 23 2017
If you would like to go beyond the basic features in the ‘default’ ESP8266 firmware, it is possible (and relatively easy) to create your own ESP8266 custom firmware. With ESP8266 custom firmware, your possibilities for interaction with connected devices are almost endless. The reason why is that you can now connect pins on the ESP8266 …
May 24 2016
There is a new kid on the block, the NL6621-Y1 Wireless Module from Nufront. The NL6621 WiFi SOC is powered by a 160 MHz ARM Cortex-M3 (NL6621M). Everything is integrated in the NL6621M SOC including 448KB of RAM. Here is what the NL6621-Y1 wireless module looks like: Supposedly it is …
Oct 20 2015
I recently posted about using the nRF24L01 module to scan for channels in the 2.4GHz range. That will let you know what channels are in use, however, since the nRF24L01 does not have the embedded network stack, we can’t determine other things like what the ESP8266 module can. (Have you checked out the Espressif.com ESP8266 …
Dec 17 2014
A while back I posted some information about the ESP8266 Wi-Fi Module. You can view that post here. I mentioned that for testing it, an Arduino with multiple hardware serial ports would be ideal. Well, I just got an Arduino Leonardo which matches that criteria. Here is how I hooked it up: you can …
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