Recent content by Goeytex

It seems to me that it may be compiler limitation where a single "IF" can only test one Boolean expression. The first Boolean expression is evaluated correctly, however the second one is ignored/missed.

I asked ChatGPT to provide example code in BASIC that demonstrates a Finite State machine. Here it is ' Finite State Machine Example in BASIC ' Define state constants Const STATE_A = 1 Const STATE_B = 2 Const STATE_C = 3 ' Initialize current state variable Dim currentState As Byte...

That is exactly will happen if you use "servo" and "hpwm" in one integrated code program, as they share the same timer. Each time servo is called it will change the settings for HPWM. Therefore they cannot run concurrently. One or both will fail. This is not a PIC limitation but a...

Welcome. Perhaps describe your application a bit better. What is it? The more folks know about what you are trying to accomplish the better the help will be. Unfortunately per Manual 2 ( Servo) page 220 under Information: "Servo cannot be used at the same time as timer or pwmout/hpwm...

Picaxe chips can have an ADC resolution of up to 10-Bits. If the reference voltage is 4.096 that is 4 millivolts per step over the range of 0 to 4.095 volts. Perhaps word your question in a different manner as it is unclear to me as to what you are trying to acomplish

These breadboard Power Supplies are very nice and produce clean outputs of both 3.3V and 5V. However the on/off switches tend to have a high failure rate ( from my personal experience). The latching mechanism fails , where the switch will not stay in the on position . Sometimes cleaning the...

Personally I would only use the maximum current ( minimum resistance) if I wanted to blind myself (and others) with an LED. I size the resistor based upon the brightness level desired for the particular color and specific type of LED. As a general rule I use the minimum current ( max...

I would think that a common snubber of 100R/.1u across the relay contacts should be sufficient to prevent contact arcing at turn off. A QuenchArch P/N 104M06QC100 Costs about $10 US. Or make one (or 2) yourself with the properly rated components. Goey

A friend of mine asked ChatGPT to write some code in GCB the question was: Help me with programming an LCD in Great Cow BASIC" ChatGPT Responded with: Sure, I'd be happy to help you with programming an LCD in GCBASIC. Here is an example of a basic program that will write "Hello, World!"...

This is a Picaxe limitation not a silicon limitation. The config bits are written whenever the flash program memory is written. In the case of a Picaxe, this is during "production programming ", meaning when the firmware is flashed onto the chip not when the actual PIC chip is...

I see nothing in the schematic that would cause a potentiometer failure. However, do add the pull down resistor and you might want to add a 20uF electrolytic bulk capacitor somewhere on 5v line. Close to the Picaxe if possible. My guess is either a wiring issue or not measuring the pots...

Looks like a firmware bug crippling the HSPI functionality of this Picaxe chip. @hippy Can you confirm whether on not this is a bug ? Maybe test on silicon ?

1) Are the batteries at acceptable levels ? Measure the voltage between the Picaxe +V and 0V pins. What is it ? Does it change when the program runs? 2) Disconnect everything from the Picaxe except the batteries. Let the program run and check the 'high' voltage on B.3 again. Did it change...

Let's assume a firmware bug where the 40x2 inverts the bits relative to the 20x2. You are using "MSBPre_L" as the mode that works on the 20x2. This is idle low. Why not try "MSBPre_H" on the 40x2 and see what happens ? If the firmware has idle low and idle high reversed on the 40x2 then...

Seems to me that with the exact same code using the same pins that the result would be the same. Possibly the firmware has a bug where the idle state is inverted on the 40X2 ? f you can't get anywhere with this, why not try using HSPIIN/HSPIOUT instead of bit-banging with spiin/spiout. I...