Recent content by donrecardo

Just a bit more confusion I received today a copy of the original circuit that was published in Model Engineering Workshop issue 108 They seem to be doing it all arse about face compared to what we were thinking They are dividing by 2 rather than 10 They are pulling all jam inputs high and...

Hi I am sorry that this isnt about a Picaxe problem but I know from the time I have been on this forum that there are many clever people on here and maybe one of them might be able to assist me I have a CD4059 divide by N counter chip I have the data sheet and have studied it for hours but I...

Hi I am hoping to have a play using SPI with and Analog Devices AD5206 digital potentiometer chip , but I have hit a snag. It has Vdd, Vss and Gnd pins If I use a single 5v supply do I use Vdd and Vss or Vdd and Gnd or do I tie gnd and Vss together and use Vdd and Gnd/Vss I havent come...

Hi I have just been playing with my new bargain serial OLED display. Rev Ed were not kidding when they said if you use an OLED you wont use LCD again. the brightness and contrast is fantastic and best of all you can read it from pretty much any angle Anyway, I have 3 questions... I know...

Q. How tough is a Picaxe chip ? A. Tougher than I would have believed I wanted to build a circuit that required a Pic16F1827 and I don't have one , but I remembered reading that the 18M2 is based on that or a similar chip. The circuit was to measure and the voltage on a car battery...

Its probably my eyes because I am getting old but I searched up and down the index of Picaxe manual 2 for BintoBCD Can someone tell me where in te manual I can find it . Also am I correct in thinking its only usable on X1 and X2 parts? Regards Don

I want to USE a Picaxe to PWM some Piranha RGB leds through IRL3803 30V Single N-channel HexFET Power MOSFETS I can get both common anode and common cathode Piranha RGB leds but which should I choose when using the N channel Mosfet ? Don

I recieved an email from the forum this morning saying .... Dear donrecardo, Your account on PICAXE Forum has been locked because someone has tried to log into the account with the wrong password more than 5 times. You will be able to attempt to log in again in another 15 minutes. The person...

Hi , I know its not stictly a Picaxe question but can someone help me out. I am making a power supply to give ... -5v 0 +5v -9v 0 +9v -12v 0 +12v -15v 0 +15v I know I could do it with a pair of positive and negative adjustable regulators but I dont want the hassle of having to try to adjust...

Hi my question isnt about Picaxe but is for use on a Picaxe based project I am making a Voltmeter to display on an LCD My input will be between 21v and 30v so I know I need to use a voltage divider on the input . I saw a small circuit for a voltage divider with the normal 2 resistors ( I was...

Hi I need to control 6 small 5v relays with a Picaxe. The relays draw too much current ( around 25Ma each) for the picaxe so I need to boost it up a tad In my parts draw I have a ULN2003 which claims to supply 500Ma and has 7 outputs ( more than enough for my 6 relays ) I have never used...

Being a beginner my experiments are nothing special but thought it might encourage other newbies to get their feet wet and have a go BTW. I use the AXE091 Developement board as my test bed , its a god send as its already got everything on it like LEDS with series resistors , switches etc...

Hi My aim is to take a GPS receiver on my dinghy and once per second over the course of two 80 minute races data log the..... UTC Lat Lon Speed So that on returning home I can overlay the data on to a map to see where I could have been a little quicker. I had the GPS receiver hooked to a...

Hi Has anyone used the Serial LCD and keypad driver from Web4Robots ? I have a couple and was hoping to learn how to use them I have connected an LCD to the driver with a pot for contrast control and on applying power I get the splash screen ok. I wish to drive it from an 18X picaxe chip...

Hi My AXE033 with DS1307 fitted always worked fine. I left it unused for a year or so and just tried connecting it up again. As soon as I connected the 5v and 0v the top row of the display showed 16 black boxes and the Led that normally pulses once a second was off. I read through the data...