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Faced with a somewhat mixed weather forecast for the next couple of weeks, I’m just wondering about a holiday project to do with my teenage son in a rental cottage during the times when we can’t go fishing/paddle boarding etc. Something that will compete with the lure of the PC! As well as a...

I’m just working out the quickest and most efficient way to arrange and send a series of bytes via hserout/infrared. The series consists of 80 pairs of bytes. I started off by sending each pair as it was created, then moving on create and send the next pair. I then tried saving each pair to...

I wonder if someone could give me a pointer please. As mentioned on another thread, I've been changing my IROUT/IRIN remote control vehicle project to SEROUT/SERIN via infrared. I first tried HSEROUT/HSERIN and have switched to "ordinary" serial for various reasons. Serial via IR is working...

I have been musing for a few weeks on the question of how to create, with a series of momentary tactile switches, the effect of latching switches, so that one press turns the LED (or whatever) on, and the next turns it off. I couldn't find anything on the forum, but a bit of poring over truth...

Some of you may have seen my two recent posts, https://picaxeforum.co.uk/threads/dual-ssd1306-displays.32305/ on the subject of setting up two separate OLED displays off the same Picaxe, and https://picaxeforum.co.uk/threads/scanning-tof10120-with-output-to-oled.32283/ on using a stepper motor...

Using two SSD1306 OLED displays is obviously entirely gratuitous, but just in case anyone else wants to do so, here are some suggestions, which I hope will save some time. At the moment it's just a proof of concept. The first step is to be able to change the i2c address of one of the...

Just in case it's any use to anyone, here's my DIY adapter for connecting the serial download circuit to a breadboard or to a real project on stripboard (or PCB for the more enterprising members). It originally came about (a) to save the cost of the jack socket and (b) because the tiny pins on...

I read a few weeks ago a thread about the TOF10120, which seemed a rather more useful proximity detector than the laser plus Hamamatsu S6986 that I initially tried. I then thought that it might be interesting to output the distance to a screen, and then even more interesting to have the sensor...

Happy New Year all (I think it’s still just about OK to say that mid-Jan). Is it possible to have two-way IRIN/IROUT? So Picaxes A and B at opposite ends of a room. A can send to B and B send to A. Presumably there is a risk that even if you shield the IR LEDs so that the A transmitter and A...

I've been distracted from a couple of larger projects over the past week, trying to create a small thermometer based on the DS18B20. I originally tried the LM335, but the readings fluctuated wildly, I think because the sensor produces an analogue ADC reading that varies by 10mV/degree C and I...

I would be interested in any feedback on the PCB scope available on the Picaxe store. I can’t justify buying an oscilloscope, but spotted this when I was looking at the Store earlier today. I’ve been wishing over the last few days that I could see visually the pattern of ADC readings coming in...

Can anyone please point me in the direction of the best way to time the interval between ADC values reaching a particular level (eg. the length of time between two points in a series of readings at which ADC reaches 100)? The intervals are likely to be between 1x and 2x per second. I'm...

I'm still working on the infrared remote control vehicle for which some of you have helped on various aspects. I'm making good progress and the motor controls seem fairly stable now after all sorts of teething troubles. It's all a bit quicker now after moving the current sense reading, voltage...

I was intrigued by @erco 's description of "turkey projects" in a post in December https://picaxeforum.co.uk/threads/erco-laser-range-finder.30127/post-329853. I was just wondering whether enforced time at home for members in some countries is inspiring anyone to make a start on projects that...

I see from the manual that, for IRIN “Effect of Increased Clock Speed: This command will automatically use the internal 4MHz resonator for correct operation” (Manual 2, page 128) and, for PWM, “pwmout is dependant on the clock frequency. On some X1/X2 timing sensitive commands, such as readtemp...

Following on from this post https://picaxeforum.co.uk/threads/bar-graph-display-on-ssd1306-oled.31765/ in which I described getting the OLED display to show the left and right motor control levels as bar graphs, I've now added IROUT to the first board (28x2) and set up a second breadboard with a...

I have to confess to feeling pleased with myself - after a very large number of failures, with bars shooting all over the display and filling the screen in entirely random and infuriating fashion., and after a long process of trial and error rather than any real understanding of why it wasn't...

I think I've managed to wreck a Picaxe. I had this message when trying to program my 28x2. It continued to run the previous program, but Picaxe Editor couldn't find the chip to download the new one to it. I did various things to check it: Double-checked the entire circuit in case I had...

I'm fairly new to Picaxe and would welcome a steer as to whether I'm overlooking something obvious. I bought one of these small 128 x 64 OLEDs (in this case from Amazon but they also have them on eBay). It worked more or less out of the box with the code for small 5x7 characters from post #7...

Apologies for the really silly question: how do I post code here so that it looks like this: If I copy it in PE6 using the "copy for forum" command, and paste it here, it looks nothing like this. I'm obviously missing something vital. Thanks very much.