Recent content by booski

Hi all. I'm not entirely accustomed to PICAXE any more and getting to grips with an 08M (just because I had one spare) with the new editor 6 was a nightmare, especially considering I nowadays use plain PIC with another Basic compiler which is just so friendly, the PICAXE was just a bugbear in...

This is more of a hardware question than code/software question so you may ignore some of the facts below. I've got a little HD44780 LCD here which I MAY in a tiresome stupor have accidently applied power in reverse. Now, im using this with a normal PIC and proton basic compiler and the built...

Personally speaking, I too use the toner transfer method. I bought a 2nd hand Laserjet 1020 on the cheap (which I eventually got free) and use DIPTRACE for artwork. The circuit prints onto a plain piece of paper for location to which I then tape a small piece of label backing paper to it glossy...

Hi there! Over the past few months I've gradually been getting used to making PCB's with toner transfer and a little bit of ferric chloride. Now, my most recent acquisition is a UV curable solder mask from off ebay for a little under £2. With this I also purchased some OHP transparency sheets...

This is the control board schematic for the top and bottom boards. And no, the tests weren't done with in isolation, it was done with fully completed boards as there really isn't a great deal of components. Initially, the test was done with a powered picaxe which when power was initially...

This is the relay board schematic. Also, I'm pretty sure someone is going to notice that there is an LED on the SEROUT pin on the chip. I figured, instead of leaving it floating, I'll stick an LED on there so that when the outputs are changed, it indicates that something has been shifted out...

Hi there! As some of you may know, I've been making a set of board for a remotely operated set of mains sockets for a college project. So far I have: Made the relay board with a TPIC6C595 shift register Made the top and bottom controller boards including 6 button ADC control, IR control and...

Made the bottom board for an 18M2 today and also the top. Picture attached is the copper side of the 18M2 board. The transfer didn't go as well as I had liked so I just tidied it up in some places with a sharpie, sharp tweezers and a steel rule. Missed one of the capacitor holes too! No idea...

Part of my project for college is to make a control panel. This panel consists of 10 buttons with voltage divider, pull down resistor and de-bounce capacitor 9 LED's with transistors and resistors and a TSOP4834 IR receiver with pullup resistor, input resistor and supply capacitor. It's all...

Can I direct you to post #23 following Hippys comment The diodes are long gone :) Have since replaced them with varistors on the the relays NO contact to neutral. Unfortunately, I've looked into R-C snubbers and without wanting to make the board bigger or to have to buy extra components...

I've drawn up the schematic in diptrace of what I would like on the board and done a rough circuit layout. I've used a grey rectangle as an area which can be milled out if necessary to provide isolation from HV/LV. I've tried to keep the size down to a 4"/3" board as that's half the size of...

I shall soon be designing and making a pcb with relays that shall be used to switch 240v ac for a mains supply. I shall most likely have a large copper pad on the board for the 240 to go to the relays instead of having individual traces and to save a lot of individual wiring. How, do I...

I've just had a bizzare idea. I've got a few lm2917 and 2907 frequency to voltage converters sitting in my drawer here. Is it possible; to potentially use this freq to volt converter rigged up to the PWMout on a picaxe to constantly change the frequency in a sweep between 2 values in order to...

This is a project I started sometime ago after setting up on eBay selling resistors/kits. I found that the process of sorting resistors into kits was painfully slow and considering how well they were selling, I could not supply quick enough to meet the demand. So I thought I would come about...