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Dear All, I have used remote control IR sensors many times in the past (the ones tuned at 38KHz) with succesfull results. I am trying to use one with axe408 board (instant robot picaxe shield) but it doesn't work at all. I've tryed with a second different sensor but no luck (I am using the ones...

Dear all, Could I use a 08M2 to PWM an IR led at 38KHz 50% duty cycle using the pwmout command at pin c.2 and an IR remote control receiver at 38KHz at c.3 to detect an objects presence by IR reflection? would the code below work? [start: high c.0 'green led on low c.1 'red led off pwmout 2...

Dear all, Is there some kind of free software able to receive data in real time from a connected picaxe ( reading a light sensor or two via ADC) via sertxd or debug command and log them into a file while doing a real time graph of values over time ?!?! Thanks, Antonis

Hello, My bot120 rubber rings (tires) get dry over time and crack. Any body with a fix on that? What can I substitute them with? I thought of trying heatshrink tube (large one). Thanks Antonis

I need to measure temperature of a metal piece that is using a heating element to warm up. I was thinking to use DS18B20. How can I apply it to get a reading from the metal piece assuming it is not going to exceed 125 C the sensor is rated at/ Should I stick it to the piece using a heat...

Dear all, I need to do picaxe 28x2 to 20x2 bidirectional serial coms over 12-15 meters. Any suggestions about cable type? Do I need 3 cores screened one (serin, serout and gnd) and I leave the screen unconected? Do I connect the screen to gnd and I only need two cores? Is DMX 512 cable a good...

What is the function of the timer clk pin in 28x2? Where can i get more info about it?

Dear all, All I need to run the 28x2 (latest version 2.1-5V) at 64Mhz is an external resonator at 16Mhz (times 4 by PLL - 64) and command setfreq em64 right ?!?! Does it affect serial comms, hardware interrupts or i2c? Just making sure, Antonis

Dear all, The system is a rotational table for 360 photography. User uses "remote unit" to set number of photos per 360 degrees or other modes and clicks run. The table gets the message starts rotating and when it gets to position it stops and sends message to the remote unit that is connected...

Dear all, I am running a project that includes a 20X2, xbee, i2c LCD, couple of buttons, a pot, two opticaly isolated outputs to trigger a camera. The problem is that I am running out of memory. Is it possible to exchange the 20x2 with a daughterboard that includes two 20x2 wired in parallel...

Dear all, I am doing a project that uses 3 adc inputs on a 20X2. The all share common ground and 5V. One of them is a 10K pot wired as in manual #3. The other two are little LDRs in pcbs that include the 10K resistor to ground and can be connected or disconnected from the main pcb. While the...

Dear all, Is it true that 20X2 gives you 4096 bytes for user program and the 28X2 -5V gives you 4X4096 (16Kbytes) in four slots? Thanks, Antonis

Dear all, Is there a way to run the background timer (setimer t1s_? command) at 32 or 64 MHz ? I know from the manual that "officially" can only do 8 or 16 MHz but I need to run my controller at 64Mhz to sample sensors (sound and light) at a high rate. At the same time I need to use the timer...

Dear all, Whats the difference between timer3 and timer in 20x2? Timer3 can't be flagged in an interrupt while timer can. Is this the only difference? Shouldn't timer3 be more advanced? Huh, just realized that timer3 has more resolution, is that their difference? All I want to do is run a timer...

Dear all, Is there a way to store a variable in a place where it is kept even if the picaxe is turned off? I am using 20x2 and I want to make a led dimmer that keeps the last brightness level in memory. As soon as it is turned on I want to recall the value from memory to set the brightness...

Dear all, I am using two boards with 20X2 and Xbee RF modules set at 9600 baud rate trying to do RF communication in the background using hsersetup technique. All I need is to send 4 bytes and then to get the 4 bytes back to aknowledge that the other side received fine. At the same time I do...

Dear all, I am trying to make two 20x2 to talk to each other via xbee modules. I am trying to do background receive as I want to make sure that the one always receives what the other sends no matter what it's doing. Xbees are from revolution education (XBee S1) and have been set up using the...

I am trying to light 8 leds in various patterns using the let dirsb = %11111111 kind of command (the leds are connected from b.7 to b.0 (pins 11-18) and work with simple high b.0, low b.0 commands) using 20x2. In the simulator seems to work fine but in real life i get no leds sparkling .... I...

Dear all, Some more food for thought for the more experienced out there with xbee and coms in general. I am planning to start a project that I need to trigger a number of digital cameras at the exact same moment. The cameras might be in distances of about 10 - 30 meters from each other and each...

I am trying to establish a simple picaxe to picaxe (18X) rf communication using 2 AXE210 boards and their xbee modules (the xbee's came as a kit with the board from rev ed, so I assume they are the proper version ones). The tutorial seems to be oriented to pc to picaxe communication and makes...