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mohammed suliman ibr
mohammed suliman ibr

posted on 2019/02/24 12:39:55 PM CET

Measurement

current sensor acs713

I'm using an ACS713 as current sensor with a 18f45k22.
I don't have any clue about how to calculate the scaling factor to get the right Ampere reading.
As per specs. this sensor has a 2.50 V output @ 0Amps and 5.0 v @ 30 amps

Rainer Hantsch
rainer

posted on 2019/02/07 09:30:26 AM CET

Communication

Looking for RS-485 (half duplex) based "Network" library

Hello.
I want to build Microchip PIC based devices, communicating over longer distances with each other.

Sadly Ethernet is no option with PIC32, as Microchip kas nothing similar to the PIC18F67J60 in 32 Bit. All Pic32 only have the MII, but no PHY inside the MCU, this rises costs and footprint drastically.

So my plan is to use RS-485 in half duplex mode (2-wires), this is slower, but available then on all platforms (8-Bit, 32-Bit, ...).

What I am looking for is a library, running interrupt driven background communication similar to a LAN. So it has to have collision detection (if two PICs try to send at same time), as well as a send and receive buffer, as much as possible should run in the background.

Is something like this available?

chuck springer
chuckspringer

posted on 2019/02/05 10:44:10 PM CET

Graphics & LCD

LCD VU (Audio Volume) Meter

Looking for C Code to design a simple LCD VU meter for displaying L & R channel audio that has been converted to DC for input to the AD converters on the PIC18F45K22.

mohammed suliman ibr
mohammed suliman ibr

posted on 2019/02/04 10:05:22 AM CET

Audio & Speech

current sensor acs713

I'm using an ACS713 as current sensor with a 18f45k22.
I don't have any clue about how to calculate the scaling factor to get the right Ampere reading.
As per specs. this sensor has a 2.50 V output @ 0Amps and 5.0 v @ 30 amps

Sven Salbach
corado

posted on 2019/01/29 02:31:46 PM CET

Graphics & LCD

MPI3501 3.5" TFT with Touch

Hallo,
does anybody have a lib /Unit for the 3.5" TFT Display with MPI3501 Controller.
it also uses an XPT2046 Touch Controller.
It cost only about 10€

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