Here's an example of what I mean - it comes from my own shop, so obviously it's the best stuff available. I have had good luck with female dupont line connecting to male pin header (like the pin header on the trinket) If you're connecting to things that don't have 0.1' pin header on them, you can wire it up on a little piece of prototyping board, with soldered connections.

It may be possible to find a new production breadboard (yours looks old - I notice the plastic looks a bit yellowed) that works better - but you'll get much better results with actual soldered connections. The first thing I would do is chuck that breadboard in the trash - you've just demonstrated that it's a bad one.

But older breadboard, or holes in the breadboard that have had bigger diameter pins pushed into them will get unreliable - leading you to waste tons of time debugging issues that turn out to be loose connections to the breadboard - and it's hard to tell whether breadboard has 'gone bad' until you spend hours debugging something that turns out to be a bad connection. When it's fresh, most breadboard works well enough. That is exactly what they suggested - that the connection between the breadboard and some wire or pin that you have connected to it was bad. On the other hand if I use a 5V battery pack, the LED turns on. I tried two different Trinkets, multiple LEDs, multiple wires and resistors, but nothing seems to work.

The built-in LED on the Trinket blinks, but not an external LED. Yet the LED does not blink! I am losing my mind over this, I cannot find a solution why it wont work. initialize the digital pin as an output.įinally, I ran the code and it said successfully uploaded. Then for my code, I found this online: int led = 2 I triple checked the wiring and it is fine. I attached a wire from the #2 pin of the Trinket to a resistor to the long leg of the LED, and then attached the Ground pin to the short leg of the LED. So the very first thing I tried was to make an LED blink. Obviously, I decided to start off with a smaller project and work my way up so I could understand what I was doing. Recently I bought an 'Adafruit Trinket - Mini Microcontroller - 5V Logic' to do a project involving transmitting and receiving 315Mhz to find a lost item by having the receiver attached to the lost item make a sound when signaled to. First off, sorry for this extremely basic question, I'm quite new to Arduino in general.

Adafruit trinket not recognized