Search results

Hello, I was wondering what the impedance of a Picaxe pin would be, when using the ADC? I searched around but couldn't find any previous posts.

Hello, I am doing a school project with the Picaxe, using the 14M2. I am using most of the pins, and I need to control an LED with C.5 (serial in). The pin is input-only, how can I turn the LED on and off? The LED to connected to V+ through a resistor and the cathode is on the Picaxe pin.

About three weeks ago I designed a PCB and had it made through Seeedstudio. I recently received them and they are just fine. :o The circuit is quite small and just consists of IC socket, the download circuit, 2.1mm DC jack and pin headers. The minimum order quantity was 10 and I got them cheaply...

I recently received three 16X2 LCD displays I bought off of eBay. I would like to use them with the Picaxe and I was wondering if there was a guide for using it or bit banging it. (I will control it directly rather than use an AXE133). I have read several tutorials but they are all ATMega and...

I got the idea of making a synthesizer with the Picaxe. I googled around and it seems to have been done already though I have not found a finished project. I was thinking of using a 14M2, using the four PWM pins to have four oscillators. The plan was to use potentiometers to adjust both the...

Hello, I have known about this bug/weirdness for some time but now I am posting to see if this is a known problem. :o When using PWM in simulation with the 14M2 selected, the PWM icon does not appear on the left side pins (C.0 and C.2). Here is a picture, the program has been looping so PWM is...

A couple of weeks ago I tried etching some boards using the toner transfer method. Transfering toner went okay and etching went fine. I waited for about a week before soldering and I think this might have made the copper corode, parts of the traces had a bluish tint when viewed under a light at...

Hello, I am playing around with Diptrace and I'm looking for a 2.1mm DC socket in the program. I have Myc's and wa55's libraries installed. I cannot seem to find it. :) Did I miss it or can I download it somewhere?

Yesterday I recieved a couple of shift registers, the 74HC595N type. I've looked around for how to use them with the Picaxe and it seems that X2 parts have the command "shiftout" which does it all for you. Some alternative code is given here in Example 2. I have not yet tested the code. Could...

I soldered this thing together a couple of days ago. It has got decoupling caps. I hope they are they right kind. A big one for power fluctuations and a small one for higher frequency noise. It has a red LED on the serial out so it is visible when the chips are communicating with the computer...

I was thinking of what to add to the protoboard, if I decide to make a new one. I would like a status LED that would light up when programming through the USB cable, and jumpers that would decide which chip to program, since there will be room for 2 of them. I have tried with both serial in, and...

Sorry for making a new thread but I am about to order some stuff from techsupplies. What size plug will fit in this socket? http://www.techsupplies.co.uk/epages/Store.sf/en_GB/?ObjectPath=/Shops/Store.TechSupplies/Products/CON010

I got the 8x8 LED matrix soldered together a while ago but I did not properly plan the control board for it so I've had to breadbord it as much as possible. I have written a program where a single LED lights up, and goes in a circle around the edge of the 8x8. This animation alone takes up 2028...

I'm planning on making an 8x8 LED matrix, but I am wondering if the Picaxe is fast enough to multiplex that many LEDs? The problem is made worse, because I do not have a Picaxe with enough pins, so I will use two of those 4-to-16 decoders. With this setup, I can only have one "pin" open on each...

I recieved some RGB LEDs recently, but my 18M2 only has 2 pins capable of PWM. I wrote this code to cycle through the colors. Is there a better way? :) let dirsB =%11111111 main: let pinsB =%00100010 pwmout B.6,150,0 pwmout B.3,150,255 'red out green in for b0 = 255 to 0 STEP -1 let b1 = 255...

I don't have the money for a Picaxe protoboard so I soldered this together myself. It has room for an 08M2+ and 18M2. They share the download socket. It is missing the switch by the battery connectors, so you cannot yet individually turn off/on each Pic. The goal was to use it with a...

Today I have received the 74154 IC for the Knight Rider LED chaser, but I do not understand how it works. I've read the TI datasheet and it is no help at all. I found a pinout from another manufacturer: http://www.nxp.com/documents/data_sheet/74HC_HCT154.pdf So basically everything is supposed...

I had some trouble with programming a Picaxe and someone suggested using an LED to see if data was being sent to the chip. I have fixed the problems but I would still like to know how it would work. I imagine the LED would be on the Serial In after the 22k resistor. Should the signal go through...

Is this an efficient way of taking a variable of four digits, and splitting it into four variables of ones, tens, hundreds and thousands? I was thinking of another way of calculating the tens, but it still takes 4 lines, so it might not make a difference. EDIT: I forgot to say that it works in...

Hey again. I was wondering how to use a single switch to toggle between several bits of code. I was thinking of making a 3x3x3 LED cube and it would be nice to have some different light patterns moving around. I tried writing something usable, for example with 4 different patterns. So this would...