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Recent Forum Posts

Re: YHDC current sensor - the theory please

the output is intended to be plotted in the freely available easy to use arduino plotter, the average human will have nil chance of interpreting the data with such a small number of samples. if your...
richard Today, 00:55

Re: YHDC current sensor - the theory please

you cannot use a current transformer that way without a burden resistor.
by voltage sensor do you mean ACS712 or similar ?
if so that circuit is incorrect, typical use
10022
richard Today, 00:06

Re: YHDC current sensor - the theory please

Sorry guys for not reponding earlier - I'm still waiting for 20A:50mA current sensor to arrive; my 100A:50mA are far too low and "out of range" for what I intend to measure.

BUT I could grab a...
flotulopex Yesterday, 21:27

Re: YHDC current sensor - the theory please

adjust resister to for the mid current used incase of some nonlinearity... shotkey diode has .3 volt drop
10016
amgen - 2nd December 2025, 01:17

Re: YHDC current sensor - the theory please

You might want to specify the model number of the sensor since there are a number of different types, and the circuit shown may not even apply
tumbleweed - 2nd December 2025, 00:26

Re: YHDC current sensor - the theory please

Have you connected your CT as shown in your first post? That is, the bottom to 2.5V (or VRef/2) and the top to input pin AND - VERY IMPORTANT - a load resistor shown as 33ohms in diagram? You must...
HenrikOlsson - 1st December 2025, 22:20

Re: YHDC current sensor - the theory please

It can't work wired the way you described. The ac signal must be biased by vcc/2 and be less than vcc peak to peak.
If the serial baud rate is too low it will ruin the sample rate.
If the burden...
richard - 1st December 2025, 22:11

YHDC current sensor - the theory please

Richard,

I've connected my YHDC sensor one pin to ground and the other to RA5. Got readings (see hereunder).

Because I'm not sure what I'm doing right now with the current sensor, I tried to...
flotulopex - 1st December 2025, 20:26

YHDC current sensor - the theory please

...sorry Richard, didn't try your code by now - still in office.... 😬
flotulopex - 1st December 2025, 14:25

Re: YHDC current sensor - the theory please

Why do want a nasty old analogue peak detector, When you can create a digital one as per my code ?
Using the very cct you posted.
If you realy need to try analogue google ""peak detector circuit"...
richard - 1st December 2025, 14:07

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