![The tx led of arduino uno is always on and the board can't be programmed(programmer not responding) - IDE 1.x - Arduino Forum The tx led of arduino uno is always on and the board can't be programmed(programmer not responding) - IDE 1.x - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/d/6/6/d6671e5223ff2a378fea80953ed6dd127bb71b1c.png)
The tx led of arduino uno is always on and the board can't be programmed(programmer not responding) - IDE 1.x - Arduino Forum
![SOLVED] Hardware Serial receiving 0 bytes, but RX LED blinking - Networking, Protocols, and Devices - Arduino Forum SOLVED] Hardware Serial receiving 0 bytes, but RX LED blinking - Networking, Protocols, and Devices - Arduino Forum](https://europe1.discourse-cdn.com/arduino/optimized/4X/d/8/0/d80b78a4338ffaccc943b3977ec426ad6f928429_2_500x353.png)
SOLVED] Hardware Serial receiving 0 bytes, but RX LED blinking - Networking, Protocols, and Devices - Arduino Forum
![Arduino: Arduino Uno's RX and TX lights not blinking. Unable to upload sketches! (3 Solutions!!) - YouTube Arduino: Arduino Uno's RX and TX lights not blinking. Unable to upload sketches! (3 Solutions!!) - YouTube](https://i.ytimg.com/vi/LoS50vc1a5k/mqdefault.jpg)
Arduino: Arduino Uno's RX and TX lights not blinking. Unable to upload sketches! (3 Solutions!!) - YouTube
![arduino - How do I hook up an LED across the tx pin on my Atmega328? - Electrical Engineering Stack Exchange arduino - How do I hook up an LED across the tx pin on my Atmega328? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/NG3Em.png)