Please help

[Gunner]

And my 2 bytes

And a few links…

C++ Blynk (Legacy) - Code Examples for Basic Tasks

#16 - Ultrasonic Distance Sensor with Servo This little project used the HC-SR04 Ultrasonic sensor… but instead of boring old distance numbers, it will also position a servo within a range of selected distances. This sketch demonstrates a timer that can be enabled and disabled, so as not to be running something like the Ultrasonic sensor if other critical timing functions need to run. And also demonstrates enabling and disabling the servo, so that there is no jitter or fluttering when it is n…

Turning "Old" Arduinos into Perfectly Usable IoT Devices

RC Rover conversion This latest addition to my utilization of Blynk with old and musty Arduinos is another rover type project. I have an old RC rock crawler that stopped crawling… I took it apart to see if I could fix it, and decided to simply replace the brains instead. I first had to replace the DC motor and clutch type steering with a servo… a lot of plastic hacking and fitting that I didn’t bother photographing at the time Then for simplicity, I used an old motor/servo shield.…

Blynk Joystick Controlled Tracked Rover with Wemos D1 Mini Pro

This is going to be a “work in progress” topic… mainly because I do things slowly, as clarity and energy allow, so if I wait until it is finished, well… we may be into a new millennium [image] I am using a Wemos D1 Mini Pro. I am using the Pro becasue it has an external antenna option… for better range, should I get adventurous. Right now I just have the Wemos mounted on a battery shield, sitting on the rover’s battery, and wired ONLY to the motor controller without PWM control. As …