B4R Share Your Creations

Four legged walking robot. A quadrupedal robot.

The kinematics of the legs have been completely solved by vector calculation with vectors with...

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Controlled DC Motor Car with BlueTooth using L298N motor Driver [B4A and B4R]

Hi, This is my first creation for B4R and B4A. Thanks for the community on this forum which I...

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Wind gauge

This system can measure wind speed. we used OptoCounter module in wind gauge system. that code...

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Plotting Graph on Nextion Touch Screen

Plotting a graph on Nextion Touch Screen 7 inch with capacitor charging data...

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The return of Peter's beetle

OLED 0.95", SSD1331, 96x64 displays bitmap. Online C sets the SPI and loads the B4X icon to the...

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OLED Picture Frame

OLED 0.95", SSD1331, 96x64 display driven by Arduino Uno or Nano to display pictures from SD...

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LED Egg Timer

Seven segments LED display, Arduino Uno or Nano egg timer. Seconds displayed, minutes are set by...

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Hard Water Softener

The electronic water descaler operates by wrapping coil of wire around the incoming water mains...

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simple FTP server on esp8266

it is a simple FTP server for ESP8266: it provides an easy way to list, add, remove and delete...

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TFT Peter's Beetle

I used @Peter Simpson code snippet on my project and it came with the beetle he has on his...

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OLED Animation

I've been banging my head all day to get it to work. The animation is from 3 bitmaps switched...

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OLED Code Lock

Electronic lock 4 digits code. Digits are stored in the EEPROM. To change code press pushbutton...

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PC Oscilloscope

Low frequency oscilloscope for PC using Arduino Uno or Nano. The input is to pin A0 of the...

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Frequency Counter for PC

B4J app for measuring voltage and frequency using Arduino Nano or Uno. The frequency is counted...

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B4J App for ESP8266/32

edited: connecting to www was added. B4J app for testing and setting ESP8266/32 using AT...

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ESP-01 IoT

The common way for IoT is to set the ESP8266 to server mode and connect to it from the WWW by...

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TFT Text from PC

Display text on TFT screen sent from PC. Arduino is Nano or Uno. TFT screen is 1.8" driver...

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SD TFT Picture Frame

1.8", 128x160 pixels TFT driven by Arduino Uno or Nano to display pictures from SD card. TFT...

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Arduino to PC

Arduino Uno/Nano inputs outputs connected via USB controlled by PC/Android using B4J/B4A app ...

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OLED Oscilloscope

OLED low frequency oscilloscope, bandwidth is DC to 1000Hz. Max sampling rate is 16000 samples...

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