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Recent Forum Posts

Re: 12F683 interrupt on change improvement?

The output is pretty clean in my experience. I use my photodiode in photoconductive mode (reverse bias), which makes it faster and supposedly noisier but I haven't noticed any noise except in some...
achilles03 Today, 04:23

Re: 12F683 interrupt on change improvement?

There are less complicated ways i think

'PIC-12F683#CONFIG
__config _FOSC_EC & _WDT_OFF & _CP_OFF & _MCLRE_OFF & _PWRTE_ON & _CPD_OFF &_FCMEN_OFF &_IESO_OFF
#ENDCONFIG

DEFINE OSC 8
richard Today, 03:44

Re: 12F683 interrupt on change improvement?

Yep, that did it! The output is now as smooth as the 16F883's output. The 16F883 used the INT_INT interrupt from the start. The GPC_INT requires the particulars you noted, and additionally it...
achilles03 Today, 03:30

Re: 12F683 interrupt on change improvement?

Hi Dave,

How clean is the output from your photodiode?
I have been working on a similar setup recently using an encoder wheel and photointerrupter.
I had greater success feeding the MCU's input...
Aussie Barry Today, 00:54

Re: 12F683 interrupt on change improvement?

i would

you are not using IOC correctly since the gpio is never read in the isr to clear the change condition

4.2.3 INTERRUPT-ON-CHANGE
Each of the GPIO pins is individually...
richard Yesterday, 23:52

Re: 12F683 interrupt on change improvement?

I had thought - should I be using "INT_INT" instead of "GPC_INT"? It is set up using GPIO.2 as the interrupt pin, which is the dedicated INT pin per the datasheet. Can you set up an interrupt on...
achilles03 Yesterday, 23:29

12F683 interrupt on change improvement?

I have a project using three 12F683s controlled by a 16F883 master. The goal of the project is to track the RPM of 4 independant propellers on a quadcopter using an IR photodiode and emitter (i.e. a...
achilles03 Yesterday, 21:58

Re: I2C LCD 16x2 Pic16f628 Code

[open in an incognito window in chrome]
support.melabs.com/forum/picbasic-pro-compiler-3-0-and-later/pbp3-picbasic-pro-3-0/773-i2c-pcf8574-20x4-lcd

original ver in post #3
alternative ver in...
richard - 11th January 2026, 23:13

Re: I2C LCD 16x2 Pic16f628 Code

Where can the Darrel Taylor LCD_PCF8574A.pbp i2c lcd include be found?
This is the only forum I have ever been on, I am trying to learn how to navigate around. Thank you very much for pointing out...
DaveBig - 11th January 2026, 15:20

Re: I2C LCD 16x2 Pic16f628 Code

there are a number of issues here

#CONFIG
;cfg = _FOSC_INTOSCCLK ; INTOSC oscillator: I/O function on RA6/OSC2/CLKOUT pin, I/O function on RA7/OSC1/CLKIN do you really need clockout on RA6...
richard - 11th January 2026, 01:12

lester

GPS Shield

The Amicus GPS shield contains a multi channel GPS receiver, as well as a 16k byte (128 kbit) serial (I2C) eeprom, and a 3 Volt, 12mm battery socket in order to maintain the receiver's built-in RTC (Real Time Clock).

Available in our on-line store

...

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Comprehensive documentation

Published on - 30th August 2011 05:03

Comprehensive documentation and a helpful and friendly support environment, make using Amicus18 an easy and enjoyable ...

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Companion Sheild

The entry level shield is labelled The Companion Shield. This is a PCB laid out in the pattern of a solderless breadboard. The holes are single sided, which means that components can easily be removed using solder mop braid, or a solder vacuum tool, if a mistake is made, or components need to be re-used.

The (PBP3) Companion Shield Manual iCan be downloaded from here

See the Companion Shield in our on-line shop
...

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What is Amicus18?

Amicus is a multifunction development system inspired by the popular Arduino board, however, the Amicus board uses a Microchip PIC^® microcontroller instead of an Atmel AVR^tm type.

Comprehensive documentation and a helpful and friendly support environment, make using Amicus18 an easy and enjoyable experience for beginners and seasoned programmers.

Forum Moderator Mackrakit (Dave) very kindly ported the Proton BASIC Compiler code over to PBP3 and modified the original AMicus18 docuemts for PBP3 users.

...

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The Amicus18 Board

Amicus18 is an embedded system platform based on a simple open hardware design for a single-board microcontroller, with embedded I/O support and a standard programming language. A great Partner for PBP3 and Perfect for the PBP3 Experimenter.

AMICUS18 in our on-line shop

...

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Product Activation

When installed PBP3 will operate in trial mode for 15 days, we recommend that you TRY PBP3 BEFORE you buy PBP3. Be sure that you are happy with the product and the facilities it offers

After purchasing your PBP3 license, the product may be activated by entering the activation key as prompted by the application, this process should be carried out whilst your host machine has access to the internet. Activation requires that the machine can contact the melabs activation service.
...

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Supported Devices

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3 x 7 segments LED display

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Dice Project

PICBASIC PRO Electronic Dice project for the PIC10F202 or PIC10F206. Written by Melanie Newman

...

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lester