ZBasic Forum

The issue boils down to what targets to implement. STM32F3xxx or STM32F4xxx with ST's open source Standard Peripheral Library (SPL) or the newer Hardware Abstraction Library (HAL), free. The CubeMX free GUI for doing the pinout and auto-generating main.c and all the I/O init make it easy to move be...

Hello, all... long time since I've been here. Been busy writing STM32F4xx C code in my consulting work. Love those processors.. much better than Freescale ARM Cortex. On the hobby front: I've bought and played with, so far: New Teensy Low Cost (LC). OK if you are a Teensy devote' which I was at one ...

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http://www.zbasic.net/forum/post-10689.html#10689

post of 9 Jan 2016

I'm working on a professional project using load cells for impact magnitude detection. Pretty easy - just an op-amp (external or if the MCU has it, on-chip), then into an ADC. My round 1 was on AVR mega328, then mega1284, now moving to ST32F415 to get faster ADCs and CPU speed for math. Lots of load...

I'm working on a professional project using load cells for impact magnitude detection.
Pretty easy - just an op-amp (external or if the MCU has it, on-chip), then into an ADC. My round 1 was on AVR mega328, not moving to ST32F415.
Lots of load cells in this project. Mix of 20lb and 200lb.

I'd done it many times.. XBees, modems, GPS, etc. Just read until I get CR; discard LF. Then take that char string to lower case and go into a big if and else if tree where each decision is based on if (strncmp(chars, "keyword", length_of_keyword) == 0) this, rather than one char at a time.

Doable but not easy to code, have each IR emitter transmit uniquely. Ways I've seen this done: 1) Receiver on (cat) receives a beacon sent wirelessly house-wide. Each IR emitter then uses a time offset from the beacon. In analyzing the received IR blip, the time offset from the beacon can be used to...

Inverse Square Law in RF propagation....
Double the distance to halve the (received) power.

That makes signal strength based ranging hard, with line of sight.

considered using fixed point in an 16 or 32 bit int?

On my cruise control project, the pedal actuator has a position pot, but strangely I can only find 2 wires, and resistance varies from approx. 0 ohms to 2.8k from end to end travel. I was expecting a 3 wire pot I could put a voltage across and measure the wiper output but this doesn't seem to be av...

Not much RAM, but couldn't ZBasic native target the ATMEGA32U4? You'd have to find/integrate a USB driver.

Here's how I do it... Field device sends heartbeat via Internet to server. Server must respond. Hearbeat is an application IP packet sent via TCP or UDP. To do an update, the server intentionally stops responding to heartbeats. After a while, the field device says - no heartbeats, so I'll reboot mys...

> . Oh, you mean USB/RS232 dongles? Yeah, but only two working USB host ports work reliably. Add a hub and you're in trouble, and the ports need to run at 1.1 speed for sound modules. USB glitching is another of the Pi's failings, presumably fixable via firmware - but not so far despite many compla...

I have an RPi too. Fun little thing. But The Pi has two UARTS but they use the same GPIO pins, oddly, so only one can be used at any moment, and it has no ADC - so a ZX-24x will fill those gaps, add some additional I/O and provide another hardware watchdog. [While very reliable in my testing so far,...

Thanks. I've been reading about Basic4Android...
The current software we have is in Java.