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    Calibrating CMPS14

    Hi all. I've had some limited success in getting my CMPS14 to return various headings, mostly using Serial communication. I've tried both 8 and 16 bit resolutions and can get readings of 0 - 255 for 8-bit and 0 - 3650 for 16-bit. The problem is the headings are far from accurate (20 to 40...
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    Picaxe vs. Arduino Support

    I'm sure I'm going to catch he** for this but I'll discuss it anyway. I've been a Picaxe user for many years. I love the system and believe it is the easiest programming to learn and most reasonably priced programmable system. BUT, if anyone googles anything concerning programming questions...
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    Sharing single PWM Output Pin to drive 2 Cytron 13 amp Motor Controllers

    Hi everyone. I've looked around and cannot find an answer to this: I'm working on an ROV using an 18M2 chip to control two thruster motors. I was looking at the Cytron Motor Controllers which seem to require PWM input vs a high-low signal to turn the motors on and off. As I only have one...
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    Help with reprogramming the AXE134Y 18m2 software

    Hello all. I've purchased, assembled and have had good luck with the Picaxe Serial OLED 20X4 display. It was easy changing the eeprom to display a different message on start-up. I would like to be able to set up a situation in which sending certain data from another picaxe to the on-board...
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    Parallax 4x20 serial lcd & pause commands

    Hello. I've had great success with the Parallax LCD when connected directly with a Picaxe 18m2. But when using RS-485 comms over a 150 foot line, the LCD will work fine as long as I don't place a Pause command any longer than 2 seconds (Pause 2000) between Serout commands. I've tried the...
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    Serial communication, efficiency in programming

    I'm sorry if this has been asked before but I couldn't find any threads. I'm working on an ROV using rs485 communication. One of the programs will be for the pan and tilt of a camera. I've written the code so that the sending picaxe (on the surface) includes the "loop" information to the...
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    Registering that Pin is High

    Hello Group. I've got a problem that seems simple enough. I've built this cat feeder which uses an 08M chip to essentially turn the feeder on and off every 12 hours. The feeder uses a pvc drum which rotates 360 degrees (filling at one point and dumping at another). I've had a problem with...
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    Electret Mirophone to Servo Interface

    Hello. I've been studying various animatronic projects and would like to set up a servo to respond to an adc input via a microphone. The idea would be to move a "jaw" up and down proportionately to the volume or length of time a voice was transmitted via a microphone. In other words, a long...
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    08M Clock Accuracy

    Hello. I've built an automatic cat feeder using an 08M chip with a simple program to run a small motor every 12 hours. The motor runs for approximately 8 seconds to turn a cylinder which dispenses the food. The problem is that there seems to be a 2+ minute delay for every 24 hours. This...
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    Servo vs. Solenoid vs. Stepper

    Hello Group. I've been working on a project to supplement a marine refer using cold outside air (a winter scenario only) in lieu of the 6 amps required to run the refrigeration compressor. So far I've had help getting my Picaxe 08m to take to temp. readings (both outside and in the refer) from...
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    Output Pin "Low" but still producing minor voltage

    Hello Group. I'm running a small (.14 amp) fan via an NPN TIP 29 transistor. In testing the system, I've simply programmed the Picaxe 08M (Pin 1) to go high for 5 seconds, low for 5 seconds and then loop. But I've noticed that Pin 1 produces the expected 5 volts at high but also produces...
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    DS18B20 Temp Comparison

    Hello Group. I'm new to the Picaxe chip and want to build a simple project which compares two temperatures using two DS18B20 sensors. The issue is to start a fan which would assist a marine refrigerator when the outside temperature is cooler than the inside of the refrigerator. The fan would...
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