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by Jay Dee
Mon Sep 24, 2018 7:26 pm
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Re: Working with Registers

Great stuff! suggestions added into original doc. Thanks Guys.
by Jay Dee
Fri Oct 05, 2018 12:00 pm
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Re: Working with Registers

Can someone confirm this is a sensbile way to do the following! :) I wish to over write the lower 4 bits of a 8 bit register....so I think my process should be 7 6 5 4 3 2 1 0 Bit Number 1 0 1 0 1 0 1 0 This is the Original Register Value 1 1 1 1 0 0 0 0 AND by this mask to clear lower four bits 1 0...
by Jay Dee
Fri Mar 08, 2019 3:20 pm
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Re: ECIO28 USB Serial - will not compile. - Solved

Hi. Odd...that USB folder was locating the the CAL\PIC\ directory. It was however an early install of V8 and it was not liking the update feature. So I borrowed a better network connection and downloaded the latest release, removed and re-installed FC8. All seems fine now. Thanks for support, lucky ...
by Jay Dee
Fri Jun 07, 2019 10:46 pm
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Circuit Design and PCB layout for existing concept design

Hey FreeLance Engineers! I have a back ground project that has slowed down due to customer projects taking priority but I really need to get it back on track! Stage one: I am looking for someone with good Digital Circuit design and PCB layout skills. Including an understanding of mechanical packagin...
by Jay Dee
Sun Nov 17, 2019 12:23 pm
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Re: RPI and long distance radio

Hi, I've played with various telemetry systems over the years... 3 miles is actually quite a distance. It really depends on line of sight (in a RF sence) what is your operating enviroment? If you are in urban or wooded countryside, you'll need quite a rig to get data between two vehicles at 3 mile (...
by Jay Dee
Thu Nov 21, 2019 11:07 am
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Re: RPI and long distance radio

Hi Abhijit, For long range I used the Lambda module which is LoRa based. I have used the Gamma but only achieved around 100m in our wooded environment (no where near the claimed max distance ), you would get much more in wide open space I expect. Check the version you have as some are 3.3V and some ...
by Jay Dee
Tue Nov 26, 2019 11:08 am
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Re: RPI and long distance radio

That is indeed interesting... I worked with the Gamma's a few years back and despite the settings changes as advised by RF we managed a patchy 200m around the industrial estate, reliable behavior was at 100m. Talked a lot with RF solutions, ran recommended antennae direct from the module etc.. RF so...
by Jay Dee
Mon Nov 25, 2019 10:27 am
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Re: RPI and long distance radio

Hi, Yes I was also a bit disappointed with the gamma... in wide open space it was much better. The LoRa Lambda module was much much better... the time to react to the siganls (send/recieve) is a couple of seconds but the range is much farther. For triggering relays, you can just use the normal Input...
by Jay Dee
Wed Nov 27, 2019 1:17 pm
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Re: RPI and long distance radio

Hi, sorry can only give basic support on this as customer is bashing me to sort other projects! ... who needs customers! the Gamma is OFDM not Lora so sorry about the file name. I'm pretty sure this was a working Gamma testing FlowCode. LoRa_Test_GAMMA_Program1.fcfx from a quick look, i noticed a fe...
by Jay Dee
Tue Mar 17, 2020 10:24 am
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Re: Learning Ghost

Thanks Guys, Not sure how I missed the Wiki! :oops: I have a play about this evening and then with flowkit J.
by Jay Dee
Tue Mar 31, 2020 7:36 pm
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Re: 18F2580 I2C Hardware Channel1 not responding

Ahh...shoot. Yeah sorry Ben. Just tested on hardware and all works.
False Alert! :oops:
J.
by Jay Dee
Thu Apr 16, 2020 9:37 am
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Re: Servo Assistance - Please

Agreed, both the SAVOX SW 0231MG and DS 3218MG servos both need the full 500 to 2500 pulse period to achieve the stated 180 degree range. FYI, I've seen some odd behavior with the chinese DS3218 but the Savox (twice the price) has behaved flawlessly so far. I have noticed that for some servos if you...
by Jay Dee
Sat Apr 25, 2020 12:04 pm
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Re: Using Tera Term (open source) as a colour LCD Display

Thanks Martin, I've found this really useful. I was outputing general diagnositc data over UART but being able to write to specific locations on the screen has made it much easier. I tried the USB slave and it worked just fine but each time I sent a new FC to my ECIO, I would have to restart my Tera...
by Jay Dee
Mon Apr 27, 2020 2:24 pm
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Re: Servo Glitches - momentary pulse width change

Thanks Ben, looks stable, I'd mark that as a solution! :D
J.
by Jay Dee
Mon Apr 27, 2020 1:56 pm
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Re: Servo Glitches - momentary pulse width change

Ooooh.. I put that little C snippet into my original program and hardware, just before the main servo move. Looks stable so far, I'm going to leave it over lunch with the DSO monitoring for issues. fingers crossed. :)
by Jay Dee
Tue Apr 28, 2020 6:36 pm
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Re: Servo Glitches - momentary pulse width change

Hi, Tried moving the C code to different positions as suggested but I could still induce the instability. Tried the alterate TMR reset value. I tried for both TMR0 and TMR1 in case there was a typo in the TMR0L suggestion. No improvment. :? Interestingly, to induce the instability, I need to use the...
by Jay Dee
Mon May 18, 2020 10:24 am
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LIN Master - Simple Macros

Hi all, Attached is a FC containing two very basic but working LIN Master macros. The first just sends the header. The second sends header, data bytes and the checksum in either v1.x or 2.x versions. It utilises the PIC's embedded EUSART LIN features so not much use if your not using PIC's or your P...
by Jay Dee
Mon May 18, 2020 10:34 am
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Re: LIN Master - Simple Macros

This is just a rough edited copy of some of my LIN Notes... supplied 'as is' No guarentees implied! 8) LIN. Good introductions to LIN https://www.csselectronics.com/screen/page/lin-bus-protocol-intro-basics/language/en https://www.ni.com/en-gb/innovations/white-papers/09/introduction-to-the-local-in...