Recent content by cianyd

  1. C

    hsersetup - automatic mode unreliable?

    I've been experimenting with a 20X2 using hsersetup in manual mode (with hserin) and in automatic mode writing to the scratchpad. I've noticed that in automatic mode the data is not consistent. Transmitter code: setfreq m8 serout 7,t2400,($55,DataByte) 'Send qualifier ($55) and data...
  2. C

    Serin timeout doesn't always timeout?

    I ran into the serin timeout problem on my 18X chips, so I bought 28X1 chips instead. Now I have a new problem, the serin timeout doesn't always timeout. Occasionnaly instead of timing out the 28X1 will hang, just like it used to on the 18X. The only way I can get it out of this hang state is...
  3. C

    Suggestions on my code

    I'm trying to make my code as bullet proof as I can from lockups, bulky coding, all the usual baddies. I'm using Picaxe 18X chips with MCP23017 I/O expanders and XBee-PRO modules for serial comms. This is what i've got it down to so far, but i'd like to get it faster and more compact...
  4. C

    Why are my inputs & outputs high when they should be low?

    I'm having a problem with my circuit (schematic below). This circuit is an electric match ignition system with continuity check. GPA0 is an input, which reads the continuity circuit. GPA0 is an output, which activates the relay that will allow current to flow into the electric match, igniting...
  5. C

    XBee wireless with I/O expander schematic

    I've just ordered the parts to build this circuit, which is basically a wireless control system with a security mechanism. This is my first schematic slash original circuit design. I'm not very used to electronics so any help with this circuit would be great. I still don't fully understand how...
  6. C

    i2c I/O expansion for more outputs

    Hi, I am using an XBee project board and require 8 more outputs to drive opto isolators. Due to the fact that the XBee board has a fixed Picaxe socket, using a Picaxe with more outputs is not an option. I have been looking at the range of MAX73xx series i2c I/O expanders from Maxim IC. The...
  7. C

    Help optimizing code for slot machine project

    Ive been working on a slot machine which ive coded from the ground up with some help from other peoples code. So far everything is working well, despite only being half finished, but ive run out of space on my picaxe 18A which I think is because some of the code is very bulky for what it does...
  8. C

    Television output from a PICAXE?

    Hi everyone, im new here but ive been messing around with the picaxe for a few months. Thought id ask the gurus if any chips in the picaxe series have the capability to generate a television output. I ask this because a hobbyist has done this with a single PIC16C84. Please have a quick look at...
Top