1. Tayfur

    B4R Question Step Motor with A4988

    Hello Friends... I tried first time stepper motor. I used Wemoıs D1R1+ NEMA17 step motor + A4988 drver + 24V-2A powersupp. I connected like under below. Sample & Decuments its run with 400-430 RPM max.:cool: I used 2 method fro drive. Micros() counting DelayMicroseconds() But Result are...
  2. D

    B4R Question How to convert this code to read Serial.readString();

    Hi All, i have problem to convert this native arduino codes as shown below. my board based on wemos D1 R1 Thanks void loop() { if (Serial.available() > 0) { String incoming = Serial.readString(); if (incoming.indexOf("{")>=0 && incoming.indexOf("}")>=0) { Serial.flush()...
  3. A

    Share My Creation [B4X] Server Room Environment solution using Wemos / ESP8266

    A client asked us to research environment monitoring options for their server room. The servers themselves have that built-in but they needed something for the room in general. The following is a proof-of-concept (POC) that I came up with using several of the B4X tools to fulfill their...
  4. Mark Read

    B4R Tutorial Using a Wemos D1 R2 and stepper motor - control over wifi

    This may be of interest to someone. I am using a Wemos D1 R2 in AP mode to serve a webpage to a client. The Wemos creates a server called "Wemos_Server" using the IP When the browser opens this IP, a page is generated with three button: Start, Stop and Reverse. This controls a...