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Hi, I'm using an Xbox, sprung joystick potentiometer as an input. These obviously spring back to the center neutral position, and thus give an 'at rest' reading of about 127 to 128 (as you'd expect, being half way between 0 and 255) when reading the pot via ADC. I want to use the joystick to...

Hi all, Looking to develop an improved portable speaker project for my electronics students (well.... now D&T, but still doing as much electronics as I can under the new GCSE specs). The kind that plugs into am MP3 player or mobile phone. It will be linked with a PICAXE (to control lighting)...

Hey all, I have a student developing an RC vehicle using the cheap 433mhz ebay wireless modules. Essentially an RC tank. He's using the RFOUT and RFIN commands for simplicity, as myself (and especially him) are not the strongest at coding. The transmitting PICAXE sends a different number...

Hi, http://www.ebay.co.uk/itm/Weighing-Sensor-AD-Module-Dual-channel-24-bit-A-D-Conversion-HX711-Shieding-UK-/301751495614?hash=item4641ca6bbe:g:xpgAAOSwRLZT4jjm Just wandering if anybody has used the above with a PICAXE. (I've ordered one, but it will be a while before I find time to play)...

Hi, I'm doing a small RFID project using the 125mhz serial RFID readers of ebay. Got the reader working fine and it spits out 10 numbers which I'm storing in ten variables (B0,b1,b2,b3,b4,b5,b6,b7,b8,b9) - for simplicity, I'm not showing that part of the code as it works fine How can I store...

Hey, P.E 5 works fine, but P.E 6 latest version refuses to load. The splash screen appears and it just hangs there forever. I have to cntl-alt-delete and end task. It used to work under windows 7 until I upgraded. Any suggestions? I've tried a fresh install of P.E6 Searching the forum, there...

Hi, I've been playing with the catalex MP3 sound modules http://www.ebay.co.uk/itm/UART-Control-Serial-MP3-Music-Player-New-Module-For-Arduino-AVR-ARM-PIC-/151483413291?hash=item23451d732b They work well and I've had it working fine using the standard commands that I pilfered from someone...

Hi, I'm running a 20m2 circuit with a 12V 5A DC power brick. (the 12V is powering a stepper motor through a L298n driver) I'm intending on using a 7805 to drop to 5V necessary for the PICAXE. Where should I fit the standard (ish) 104 ceramic and 100uF electrolytic decoupling capacitors? (I'm...

Hi guys, Teacher here. We normally build our student PCB boards in house, but with the cost of Rapid's photo-etch board, chemicals and technician time it's working out quite pricey to do this. I have heard lately that there are a few firms that do very reasonable prices on small quantity...

Hi, I've adapted some code I found in a previous post regards fading an LED up - It works in a nice controlled manner and with some playing, now has the effect I want, however, I get an annoying 'pre flicker' before the main fade up kicks in. i.e, a very quick low brightness 'blip' and then...

Hello, I've got several of the budget OLED display modules with the 18m2 based firmware driver board -I'm very practiced in using them in their normal intended use, but I spotted in the documentation that 3 of the firmware chip's pins (c.0,c.1,c.2) are unused by the LCD and it is possible to...

Hi, I'm experimenting with fading an LED based on the distance from an ultasonic range finder unit. - I've got the code working in principle, but its not quite working as nicely as I want When the distance is at maximum extents (about 285mm) the LEDs should be be on minimum brightness, and...

Hello, This is my first forage into Picaxe maths, and I'm struggling to understand what is happening - I've read manual 2 regards variable maths, but It doesn't seem to explain in enough detail to cover my issue below. Hoping you can shed some light. (I won't bore you with the back story of...

Hello all, Been a while since I last posted, but it's a new school term, new students and some new questions (I'm a teacher) that you guys might be able to help with. I have a 6th form students studying systems and control and he's come up with a really nice project 'idea' of creating a...

Hi, This is my most ambitious programe yet (for me at least, go easy!) - I'm trying to make a simple keypad activated lock, but also with a 'set code' mode where the 4 digit pin can be set from within the programe. I had the structure working fine when it was just looking for a code that was...

Hi guys, I'm starting to get more confident with the BASIC programming (if you've seen any of my previous posts, you'll know i'm a bit of a noob with the code - used to flowcharts) - anyhow, for my latest experiment i'm making a simple 'touch sensor' operated turrent - actuated by a normal...

Yes.. back again! - Now i've figured out the XRF module problems (see recent post, and thanks BTW) i'm trying to get communication both ways (the final step in my master plan) My intention for the code below is: (as per my previous post) - Transmit an incrementing variable from chip 1 to chip...

Hi I've been reading scary things about the error on the serial transmission rates for the 20x2 and 20m2 chips... annoyingly I have brought 2 of both for my first forage into the 'new picaxe' and am not sure if they are the cause of the problems I'm having, or if it's me being stupid as i'm...

Hi, I'm just playing around with one of the fancy 4 line OLED LCD modules - at present i'm just trying to display a realtime reading from an ADC input on the display. If I power the display from a separate power supply to the PIC (a 20x2 in this case) then the readings are stable and reliable...

Hi, At my school we're entering our 2nd year of the 'green power electric car' race series. We'd like to get even more efficient this year and start to measure the current draw of our car, ideally logging it while testing different gear ratios and bodywork designs. I know you can do data...