ZBasic Forum

After a days worth of head scratching, this did, in fact, end up being something simple.
I had assumed that the default setting was Com 1, and never explicitly told it to use anything else. Mystery solved.

It's been quite a while since I've touched a ZX device, so forgive me if I've missed something elementary. A recently delivered 1281n development board, powered via USB, correctly ran the 'Hello World' application when first powered on. After uploading a small application (Code: 7234 bytes), the app...

I would probably use current limiting resistors to tune the individual LEDs, and then use a single channel of PWM to feed the Darlington array for your global brightness control. Depending on the total current requirement of the LED display, you may need to use another Darlington array channel for t...

I think your original idea is pretty close to the most straightforward method. You could use a SIPO shift register to receive 2 bytes from the timer and display up to 16 LEDs. There are devices available that do exactly what you need, including LED current regulation, such as the STP16DPS05.

The wear-leveling method does work well to extend the lifespan of the memory locations, but when used as the sole method of commulative data recording, can suffer from a gradual loss of data points. For example, if you are writing the time to memory once per minute and the processor shuts down at 59...

Perhaps it's using a reference to ground via a metal mounting surface?

The 0-12 scale is probably 0 - 1200 degrees. Pyrometers typically employ thermocouples to sense temperature, which generate their own, non-linear voltage relative to the applied temperature. If this is the case with your meter, it may be a bit of a challenge to interface it, as the voltages required...

The LUFA stack documentation does makes some mention of host management. My limited knowledge of USB would be the limiting factor in this method of implementation though, even if the stack were capable of functioning as a full USB host. 'Biting off more than you can chew' would the appropriate idiom...

A project was recently proposed which requires a microcontroller to function as a USB host to a piece of video equipment. The USB command structure is well documented and poses little difficulty in regards to programming. Are there any devices in the current lineup that offer this functionality? -DK

That makes much more sense. I mistakenly thought you were trying to read the throttle position, when in fact, you're trying to emulate it. That would be a nice solution to interfacing with the engine. I've done many GPS projects myself, and can only say that you might have a problem with 'hunting' u...

There's no need to interface with the throttle control. Cruise Controls don't function in that manner. For example, if you keep your foot on the accelerator pedal in exactly the same spot, the vehicle speed will change with the varying road conditions. The important part is to know the vehicle's spe...

How about something like this: 'Public Variables Public ButtonStateFog as Byte = 0 'Input(s) Const InputFog As Byte = 5 'Output(s) Const OutputLeftFog As Byte = 13 Const OutputRightFog As Byte = 15 Const DebounceDelay as Single = 0.05 Public Sub Main()...

While it is true that a dialog could be created with an edit control to allow modifying the download command, doing so doesn't afford much of an advantage. It seems that it is nearly as easy to load the User Properties file (one click on the Options menu), find the property and edit its value. True...

Am I correct in assuming that download.speed can be used also? It's clear to me now that the User Properties in SciTE is taken from the Serial port options and other similar dialogs. Is it possible to add a text area in one of them (or an additional one) for entering the generic device command line ...

I like the mapping trick. It shouldnt be hard to great a map for every device for AVRDude.

Is there a method available to poll the IDE's download COM port setting and speed as well?

-Don