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I want to add a small RFID module to a picaxe circuit. It is not security critical - just want it to run on a pump when it is in presents of a RFID card - any card/tag will do, so dont need to read and decode numbers or anything. Would it be possible to interface with the below reader with a...

I've got a solar powered weather station consisting of a old Nokia phone, a 40X2, a wind vane/anemometer and a whole lot of Optoisolators which "press" the buttons on the phone, which composes a txt message which gets sent via a gateway as a tweet. It's is a very round about way of doing it...

My 2 year old cat keeps wandering off to a neighbours house about 500m away. Have done every thing to try prevent him doing this so it's time to get a bit techo... One of the only ways to get to the neighbours is over a small foot bridge, I want to set up a water sprinkler so that when he...

Hi everyone, I've got a spa pool hooked up to a 30 tube vacuum solar panel. I have a one wire sensor in the panel, and another in the pool for controlling the small 12v circulation pump. the basis of the code is pretty simple; If temperature in the pool is less than 37 degrees, and the solar...

I have made a small wind meter that tweets out the wind speed and direction, using an old cell phone and a X2. It has been going great.... until today. It has started tweeting higher than expected wind speeds and gusts which are lower than the average - which should be impossible according to...

"stack error - more nested gosubs than the stack allows" I have googled this error and the common cause seems to be when you have a gosub but no return. Is there any other reasons? My code seems to work fine for hours and hours on the chip, but in simulation is errors out after a couple of...

Hi all, I'm making a tweeting mobile weather station, so far i have it tweeting wind speed, wind gusts and wind direction and i would also like to tweet the tides. The weather meter is being used for kitesurfing - where we go in Raglan NZ it is quite dependent on the tide and i want to have...

Hi Everyone, I'm wanting to build a simple a device to measure the head space left over in a bag of powdered product. A small vacuum pump will remove the excess air from a bag and when a certain vacuum pressure is reached (all air removed, plastic bag against product) the motor will stop and...

Hi everyone, Im looking at making a remote weather station, that will text me the wind conditions for kitesurfing at the beach, have found a weather station that will do the trick, but need to interface it with a cell phone or a GSM module to send the sms. The weather station I plan on using...

Me and a friend have just got into kitesurfing and we want to make a camera tracking system to film us doing jumps and stuff. The idea is to have a gps and an xbee on one of us out on the water. The xbee would send the GPS data back to a picaxe on the shore which would drive a servo to pan the...

Im wanting to interface with a set of bathroom scales with a picaxe, so that i can log the weights and upload the data to a google spreadsheet. I have a set of scales, that has four load cells, so reading the different strain gauges would be a bit tricky i think. Is it possible to get the...

Ive just hooked my power meter up to a picaxe and have been uploading the data to a google spreadsheet. Today i interfaced the gas meter, using a reed switch (the fastest moving barrel has a small magnet in it :) The problem is that it spins slowly, about 1 rev/ 45 seconds which will give me...

using an 08m, some python script and an LDR i am measuring the flash from the led on my electricity meter, converting it to cent and posting the result to twitter. From twitter u can graph the usage and keep a track of things. Have a look the twitter page, www.twitter.com/AtOurHouse just...

how could i get a picaxe to sense the wether or not current is flowing along a 240 volt extension cord or similar without using the actual live wires? Im not concerned about the value, just a simple on or off. Would using a small coil or wire in close proximity induce a voltage? Thanks for...

i want to have a play round with hacking my rinnai continuous hot water system. My flatmates like to have long long showers, and the power bill is suffering as a result. My idea is that after the hot water has been running for 10 minutes to decrease the temperature to as low as it will go -...

My basic download circuit for a 28x isn't working, and both the voltage reg and pic is getting hot. I borrowed the picaxe of a friend so not to sure about its history. If it has been perviously damaged will it continue getting hot and drawing large current?? the only parts that are connected...

Im am wanting to build a sun tracker for a large water solar panel. Im not too sure on the efficency gains from having it pointed it directly at the sun all the time, but i mainly want to do it cause i can, and it would be cool. I was thing about mounting it at a fixed angle on a pivoting...

I am running both a small 08m circuit and a cellphone off the same 3.7volt lith-ion battery. The 08m circuit drives small relays directly which simulate pressing the buttons on the cellphone. Up until now the whole system has been behaving very well, but every now and then the picaxe seems to...

At my company we have a large automated packing system > putting product in bags > coding > robot stacking on pallets > pallets automatically stretch wrapped > pallet labeled with a barcode, automatic forklifts takes the pallets to the daystore. Its quite impressive to watch. The whole...

I work in a large factory, and we are continually have problems with missing tools. Screw drivers, spanners, crescents always goes missing. We probably spend 2-3K a year on tools. My idea is this. Place RFID tags on each tool. These can be place under heat shrink for protection e.t.c. We...