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Good evening all, Its been a while, but good to be back. I had an opportunity to finally finish a project (LCD serial/I2C interface board) I had got printed, but never got to finish, and its not behaving quite as well as I would like (which I think might be a serial issue, but thought I'd...

Okay so I don't know what i'm doing wrong, but its not working, so I need the help of the forum. I'm working on a firmware chip for serial and I2C for an LCD. Unfortunately I'm not even having any luck turning the LCD on. Its powering up and just producing a series of black boxes on the bottom...

I just need someone to do a quick sanity check of a thought I came up with tired last night. Picaxe 18M2 or a 20X2. Both will run between 1.9V and 5.5V and so will run off a 240mAH 3.7 Volt Li-pol battery. However even running at 3.3V or lower, their digital outputs will still run at 5V and...

Okay i need a sanity check of my circuit. I'm building lights for the path at home as its an old brick path that roots have come and damaged and at night it can pose a trip hazard. Anyway i'm using a TLC59116 LED controller, its a constant current PWM I2C LED controller which i'm using to...

Merry Christmas everyone. In the spirit of giving and Christmas I'd like to share a project i've been working on recently with the community. I'm referring to the project as a Picaxe Game System. In short terms think of it like a gameboy or similar. The system consists of -A 4D systems uLCD...

Well now that we've solved the problem of the subscript error, i would like to ask for help with my program. I'm using the 18X as a decoder. I have a 4x3 way matrix keypad. The rows are connected to 4 outputs from the chip (0-3) then fed back, though current limiting resistors to 3 inputs. By...