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Recent Forum Posts

Re: Increasing resolution of DTs MIBAM library?

And then you can use the dedicated PCA9685PW chip with 16 channels, 12-bit resolution, cheap and very reliable. Also the PCA9956BTW at 24 channels @ 8 bit.

Ioannis
Ioannis Yesterday, 15:54

Re: Increasing resolution of DTs MIBAM library?

Hah, just solved it :)
since I have output transistors, previously I was feeding their bases with output from MCU
Now I will feed their emitters via MCU, connect all bases together and connect them...
CuriousOne Yesterday, 06:38

Re: Increasing resolution of DTs MIBAM library?

Well that's nice idea, but selection of pins to where you can map HPWM - is quite limited as I know.

I had another idea - use MIBAM as is, but feed outputs to logical AND gate and use built in PWM...
CuriousOne - 16th September 2025, 08:48

Re: Increasing resolution of DTs MIBAM library?

Darrels documentation says
In order to increase the resolution to 10 bits the LSB would need to be 1/4 of its current length meaning you'd need the PIC to run at 192MHz. Or you'd need to reduce the...
HenrikOlsson - 16th September 2025, 05:54

Re: Increasing resolution of DTs MIBAM library?

I'm using MIBAM because with 64mhz PIC18 CPU, I can have 48 independent PWM channels. But they're 8 bit. I want 48 channels with 9 or 10 bits resolution (12 - preferable) :)
CuriousOne - 14th September 2025, 21:01

Re: Increasing resolution of DTs MIBAM library?

More channels is totally a different thing from resolution as you stated on post 1...

Maybe you can do that in assembly. A bit difficult though.

Ioannis
Ioannis - 14th September 2025, 15:11

Re: Increasing resolution of DTs MIBAM library?

Unfortunately, there are no PIC chips with like 8-16-32 independent PWM outputs.
Sure, there are chips like LT8500, with 48 channel PWM output, but they're way too expensive...
CuriousOne - 14th September 2025, 05:34

Re: Bitbang USB protocol?

Yes, it has been done on an AVR. See this link for the V-USB

https://www.obdev.at/products/vusb/index.html
Jerson - 14th September 2025, 04:47

Re: Bitbang USB protocol?

only in their dreams

https://en.wikipedia.org/wiki/USB_communications
richard - 14th September 2025, 01:08

Bitbang USB protocol?

So maybe bitbang isn't the right word, but I am wondering if anyone has attempted USB communication on a chip without integrated USB functionality. I'm aware chips like the 18F2550 include that...
achilles03 - 13th September 2025, 17:41

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 04:03

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