I am trying to make a large display of distance data from an ultrasonic detector connected to a PICAXE14m2. I'm having trouble figuring out how to connect the PICAXE14M2 running at 5v to two 4026B counter microprocessors and 2.3" 7-segment displays running at 7 volts (the large display uses 4...
Hi:
I just saw an i2c interface board online that is supposed to connect to 16x2 and 20x4 LCD screens. It's advertised as an interface for Arduino use and only needs a couple of pins to drive it. Has anyone tried to use one of these with a PICAXE? Does it work and is it easy? What would need...
Hi Alan:
Thanks for the input. I'm attaching a diagram showing my circuit wiring (the notes explain the wire color conventions, but they mainly are for me later when I forget what I did) and my code for the PICAXE08M2. The Darlington I'm using is a ULN3803A. As for using C.0 as an ADC pin...
In a project I've been doing I've up against the limit on the number of pins on a PICAXE08M2. So I would like to use the input only pin C.3 to read the state of a photo resistor. This pin is incapable of doing ADC, so I'd need it to do a digital read.
I've looked at chapter 3, page 29 on the...
Hi all:
I've been struggling with a rather simple project using a PICAXE08M2 to try to randomly light and un-light some LED containing cars on a small HO train layout. The cars need 12v (or at least 9v) to light their LED's, so I thought that using transistors with the base connected to an...
Hi:
I am a newbie to the PICAXE and I'm having a problem trying to get a PICAXE20X2 to drive a 16x2 LCD. I saw a similar recent thread using a PICAXE 18M2 and an 8 bit connection, but I've wired mine up to operate in 4 bit mode. I've tried to code up the simple example from the PICAXE manual...
Hi:
I too am a newbie and I'm having a very similar problem trying to get a PICAXE20X2 to drive a 16x2 LCD, but I've wired mine up to operate in 4 bit mode. I hope this is an okay place to jump in with this problem, but please let me know if I should start a new thread instead.
My data pins...