B4R v1.20 added support for ESP8266 modules. ESP8266 is a great module for IoT solutions. For a few dollars you get a powerful microcontroller with built-in support for wifi.
This example generates a OTP/2FA ("One Time Password") as you know it when you login to a website and you get a 6 digit code via sms. It changes every 30 seconds.
Here is a nice tutorial by the guy in DronebotWorkshop. What surprised me (and I did not know that) is that with e-paper you only have power consumption while writing to it and no more. Even if...
- generate an RSA keypair (Public and Private key) on a ESP32 and on B4x
- export these keys in PEM format (compatible with any other plattform like B4x, .net...
My wife's eldest son is addicted to PS4 F1 2020 game, even bought himself a Rig for a Steering Wheel and Pedals.
He works alongside with me and on one of...
I've been working with SSD1306 OLED for long time, in some projects I was in need to add some special fonts and add some graphics or icons like blue tooth symbols. I thought to put all these...
I have put together this Excel file which shows the "translations" bettween AWG value of cable (american wire gauge) and european metric value of surface and diameter. I...
Temporary solution:
After you start compiling and compiling log reachs uploading sketch stage, you should continuously press BOOT button on ESP32 board until uploading complete...
here is an implementation of a car lights checker which reports if all 4 car's lights are working properly. To find out if there is a problem with the lights (head and rear) we use...
So B4R is so much more than simply code and breakout boards assembled/connecter by jump-wires and breadboards...
I know for a fact that most of us are not electronics pronned and thus...
This example downloads a file from a server folder (here I use a folder in htdocs on my apache server) and saves it to a file on the file system. Tested with 700KB files. Set headers (browse the...
My office gets cold overnight in winter. I have a heater which has a basic thermostat but its very inaccurate (its just a min/max dial not temperature based). If I leave it on...