Search results

I having some trouble getting my 40X2 chips to talk to each other. I have 2 joysticks and a latching switch on the transmitter chip as well as the transmitter enable and the serial out to the transmitter module (see the attached PDF). I have a saber-tooth 2 x 32 Amp Dual H bridge as well as...

Im trying to send variables from one 40X2 to another using HOPERF 433mhz TR ttl level transceivers. Ive tried using both serout/serin code and rfout/rfin code. Ive tried with and without a qualifier Ive tried putting a pause 100 after each transmission and then in turn tried putting the receiver...

I've got hold of a sabertooth 2x32A dual H bridge. I want to use it on a remotely controlled robot, I have built and tested the wireless comms, so I'm not using an RC model remote control system. It can be controlled using servo inputs so the servo/ servopos command will work but I would like...

I intend using a pan and tilt project with my students next year but I want to just make sure I won't have any unforseen issues. I had a major one this year with a different project so I thought I would throw it to the forum to pick at. Project: A pan and tilt style mechanism with an analogue...

Im trying to reduce 6 volts to 5 volts using a voltage bridge, l Im using a 1k on the high side and a 5k on the low side to give me 5 volts, no problem. That powers my chip nicely. What I need to find out is; if I add an LED and a 330 ohm resistor...

I would like to replace the ultrasonic tranducer the SRF005 module with waterproof units http://www.jaycar.com.au/products_uploaded/AU5550.pdf These units have a sealed front that will allow me to mount it at the front of a car in all weather at bumper level. ( powered by a seperate supply and...

Im having a mental currently trying to build a solid state circuit that works like a change over relay but my brain is having a bad day. I would like to use one output to control my H bridge. I have a PWM on the low side of the H bridge. The H bridge has 2 controlling inputs ( forward and...

I have often thought about using a PICAXE 40X2 to drive a fuel injection systme on a Briggs and Stratton 3.5 HP stationary engine, just to prove it can be done. I couldn't do much without a motor so the project was left to gather dust. Yesterday a motor arrived. Now to tinker. Has anyone done...

I am debugging a 40X1 project and using most of the portC pins, they don't come up on the debug, I would like to be able to use the portC digital inputs on the simulator. The extra ADC pins are not coming up either. I have the most current editor and the download circuit is soild. I checked with...

Now that I have your attention. Relating to an earlier thread that started with noise suppression... I do appreciate the fact that there are people on this forum who give a damn about the welfare of others and will let them make mistakes but not hurt themselves, not like discovery learning with...

Playing with RC servos again/still, did a search of the forum, all 12 pages that came up( "servo"), time to ask. I am running 5 servos off a 40X1 PICAXE and they don't play well together. Basically when I turn a 10K pot the servo will turn, all the maths is good and it works perfectly when I...

Can I ask Hippy, Dippy etc to have a look at the HIP 4081 MOSFET H bridge driver chip. It appears to be a really easy (relatively simple) way to wire up a 24 volt 20 amp( with enough MOSFETS in parallel) motor with forward and reverse direction control, of them would allow a serious skid steered...

I need someone who knows, to have a look at this because I want it to work and its affecting my logic. I am using four of the same MOSFETs to drive a motor in an H bridge, the MOSFETS are driven of an L293D. Most tell me that I should use two P type and two N type but according to others, that...

Just got a new box and it runs windows 7, how do i load a driver for the Axe027,I've tried to load the axe027 folder but to no avail

I need to configure the 40X2 leg 26 ( portC 7) to an output and turn it on and off. high portc 7 Yet when I use the syntax test I get reminded: Error: 'high portc' command not supported in this mode! I tried to use an output command ( as per the let dirsC command information) Can I seperate...

Plan: To use an L293D to drive 4 MOSFETS ( NTP60N06 N channel) to allow me to PWM a motor ( just a DC motor, not a stepper) in either direction. Anyway, the L293D datasheet shows 750ns turn on and 250ns turn off, do I still need pull down resistors or is it just a good idea to have them anyway...

Breadboarded Hoperf modules Joystick hacked from a playstation controller that malfunctioned (after being overworked perhaps). The drives are tamiya worm drive units with model aeroplane wheels.

My school system will not allow me to install the programmer because it is an .exe file and the education department has banned it from use as a blanket ban. If you could zip the file I should be able to down load it. I need to program 14m and 20 m chips. By the way I am the teacher in charge...

I used to use old playstation 1 controllers and grind off the components then solder in connection wires near the button pads, The PCBs were epoxy board that you could do that to. However recently I got hold of 5 secondhand ones and upon opening them up I found theyare using a flexible printed...

At the risk of the scorn of the forum I'm having issues with wireless and need a little assistance. What I want to do: Send 8 byte variable on a wireless link using the HopeRF modules. These variables are attached to sensors and I have that end all sorted. On the reciever end I would like to...