April_Adrian:
TX TX
RX RX
You always connect Tx to Rx and Rx to Tx.
Look at the Sketch Builder (link at the top of the page) for code examples.
Search for Arduino and ESP-01 for literally hundreds of topics explaining how to use these devices together.
Better still, choose better (and cheaper) hardware:
I thought I’d write a piece about my thoughts on the best hardware to use for your IoT projects if you’re just starting-out with Blynk.
I did what many people do, started-off buying an Arduino Uno and uploaded some code to make it flash an LED. After about 10 seconds of watching the LED flash I was bored, and wanted to do more (I have a short attention span ).
The next task was getting the Uno connected to the internet and I chose the Ethernet Shield route. After around 6 months of m…
Pete.