![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/nLWYZ.png)
arduino - How do I hook up an LED across the tx pin on my Atmega328? - Electrical Engineering Stack Exchange
![resistors - Position of leds in the RX/TX portion of an arduino compatible - Electrical Engineering Stack Exchange resistors - Position of leds in the RX/TX portion of an arduino compatible - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/ebwIA.jpg)
resistors - Position of leds in the RX/TX portion of an arduino compatible - Electrical Engineering Stack Exchange
![Tutorial 10: Fade an LED with Pulse Width Modulation using analogWrite() - Programming Electronics Academy Tutorial 10: Fade an LED with Pulse Width Modulation using analogWrite() - Programming Electronics Academy](https://i0.wp.com/www.programmingelectronics.com/wp-content/uploads/2012/09/06-Fade_bb-e1346626521258.jpg)
Tutorial 10: Fade an LED with Pulse Width Modulation using analogWrite() - Programming Electronics Academy
![adding LED's to Rx/Tx lines of 328 TFQP SMD to show uploading action - General Electronics - Arduino Forum adding LED's to Rx/Tx lines of 328 TFQP SMD to show uploading action - General Electronics - Arduino Forum](https://aws1.discourse-cdn.com/arduino/original/4X/d/1/2/d12fa25f236f29533164528e5368aac3c79a02af.png)
adding LED's to Rx/Tx lines of 328 TFQP SMD to show uploading action - General Electronics - Arduino Forum
![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)
arduino - How do I hook up an LED across the tx pin on my Atmega328? - Electrical Engineering Stack Exchange
![how use pin rx tx to on off ( high low ) an relay or led - Installation & Troubleshooting - Arduino Forum how use pin rx tx to on off ( high low ) an relay or led - Installation & Troubleshooting - Arduino Forum](https://aws1.discourse-cdn.com/arduino/original/4X/3/4/1/34114f14830fb250300565f526c061b6877964a6.png)