 Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me. |
Forum Index : Microcontroller and PC projects : Just a side project
| Author | Message | ||||
Bryan1 Guru  Joined: 22/02/2006 Location: AustraliaPosts: 2051 |
Well guy's as I keep getting errors with my surface grinder project it is going to take Lyle to the rescue to finish it off. So now I as had that spare 3.5" ILI9488 LCD I hooked up with my zero board only to find the touch would fail and doing a research Phill gave a while ago pointed me at the spi lines well finally I got the touch calibrated > option list PicoMite MMBasic RP2040 V6.03.00RC14 OPTION SYSTEM SPI GP10,GP11,GP12 OPTION COLOURCODE ON OPTION CPUSPEED (KHz) 200000 OPTION LCDPANEL CONSOLE OPTION DISPLAY 26, 60 OPTION LCDPANEL ILI9488, LANDSCAPE,GP2,GP1,GP0,GP5 OPTION TOUCH GP4,GP3 GUI CALIBRATE 0, 4062, 4061, -840000, -866666 Now what I found was hitting enter in MCCC after I ran the program with Phill's code for the DS1820 thread. 50 Temp = 18.1°C 50 Temp = 18.1°C 50 Temp = 18.1°C 5 > mp = 18.1 > mp = 18.1° > 0p = 18.1 > mp = 18.1° > option list As for this project if I'm correct we switch the active rather than the neutral line on the AC a 12 volt relay is needed so a new PCB will be designed. Now my idea is as I have a 240 volt AC 30 watt heating belt that will cook a 25 litre fermenter so temperature control is needed. So using the DS1820 we can keep a 22-26 C range so the beer ferment goes smooth and lets face it US Aussies just love a beer where temperature controlled ferment is needed to get that right drop. Anyway thats my goal but honestly the PCB design will work for any temperature range we set it too with 2 relays that can switch AC loads to achieve the temperature ranges we need. Regards Bryan |
||||
Mixtel90 Guru Joined: 05/10/2019 Location: United KingdomPosts: 8869 |
I cheat. :-) STC-1000 temperature controller. £3.80 from AE including the necessary temperature sensor. Individual isolated Heat and Cool relays rated for mains. Available for 12VDC, 24VDC or AC mains supply. I'm going to use two of these for controlling aquarium temperature. You configure the setpoint and the hysteresis, that's all you need. For heating only I will have the setpoint at 24.5°C and the hysteresis at 1°C. The heater then kicks in at 23.5°C (setpoint-hysteresis) and drops out at 24.5°C. The Cool contact will close at 25.5°C (setpoint+hysteresis) and drop out at 24.5°C. That makes it useful for either cooling fans or an overtemp alarm. Mick Zilog Inside! nascom.info for Nascom & Gemini Preliminary MMBasic docs & my PCB designs |
||||
| Bryan1 Guru Joined: 22/02/2006 Location: AustraliaPosts: 2051 |
Well I guess I'm having fun with Claude tonight as here is the code for upto 8 DS1820's to hook upto 8 relays on a 2040 zero with my ILI9488 TempControl_v1.zip So with meeting with Claude am I finally waking up to a world here writing MMBasic code is just asking Claude a few questions and the code is done. Gotta say for a guy deciding to have some shed beers after waiting 6 months getting to know Claude has been a eye opener for me. I did ask Claude to give me a sprint layout but it was a no go as it was a closed source so fun tomorrow in Sprint Layout making the board with a 2 relay option. Edited 2026-05-31 19:56 by Bryan1 |
||||
| PhenixRising Guru Joined: 07/11/2023 Location: United KingdomPosts: 1936 |
I wonder... Could Claude (or similar) come up with Gerber plots. SL6 can import Gerbers and then all that's left is to add the TH pads, etc. 🤔 |
||||
| Bryan1 Guru Joined: 22/02/2006 Location: AustraliaPosts: 2051 |
Yea I was hoping Claude would design the circuit for me but where will the fun go of designing the boards for review go but eh we can't ask AI to do everything can we. |
||||
phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 3259 |
Had a look at Claud's** code and it calls a DS18B20() Function that isn't included. You could add one from the "tempr not working" thread but MMbasic has it's own. TEMPR START GPxx,3 : Temp = TEMPR(GPxx) Print Temp The ",3" sets the resolution to 1/16°, ,2 = 1/8°, ,1 = 1/4° and ,0 = 1/2°. Lower resolutions convert faster. The example above shows TEMPR(GPxx) immediately following TEMPR START but it doesn't need to. You can put other code between to make use of the 600mS or so it takes to do a conversion. When reading multiple DS18B20s for maximum efficiency do all the TEMPR STARTs in a block, other code then all the TEMPR(GPxx)s in a block. eg for 4 sensors on pins 4 to 7 (GP2 to GP5) For n=4 to 7 : TEMPR START n,3 : Next ** Should we be using a capital "C" as claude isn't a person? Edited 2026-06-01 08:00 by phil99 |
||||
| Bryan1 Guru Joined: 22/02/2006 Location: AustraliaPosts: 2051 |
Ok I'm working with claude to try and get my slave zero on my OV7670 camera setup for I2C but keep getting errors. PicoMite MMBasic RP2040 V6.03.00RC14 OPTION SYSTEM I2C GP14,GP15 OPTION COLOURCODE ON OPTION CPUSPEED (KHz) 288000 Now I put the I2C SLAVE OPEN 0x30, 0, 256, i2c_int in a file and ran it[5] I2C SLAVE OPEN 0x30, 0, 256, i2c_int Error : Pin not set for I2C So why is this doing this when doing a list pins GP11 15 OFF GP12 16 OFF GP13 17 OFF GP14 19 Boot Reserved : SYSTEM I2C SDA GP15 20 Boot Reserved : SYSTEM I2C SCL GP16 21 OFF GP17 22 OFF GP18 24 OFF The I2C is setup and it should just work |
||||
| Bryan1 Guru Joined: 22/02/2006 Location: AustraliaPosts: 2051 |
Ok to explain this in more detail a few years ago I made up a piggyback Zero board for a OV7670 camera, today I finally brought it out to see if I could get it working. So to get started we just tried to get the zero slave to open but kept getting conflicts now it clearly states in the manual for I2C2 GP14 and GP15 are listed as suitable pins. this is the slave code ' OPTION EXPLICIT OPTION DEFAULT NONE CAMERA OPEN GP8, GP10, GP11, GP12, GP13, GP0 ' capture frame I2C OPEN 100, 1000 ' master mode, no SETPIN needed ' send chunks to display Zero I2C CLOSE Now before we get to I2C [5] Camera OPEN GP8, GP10, GP11, GP12, GP13, GP0 Error : Invalid display type claude did suggest to open on the slave zero I2C as a master so my camera open command is the same as the command in the manual CAMERA OPEN XLKpin, PLKpin, HSpin, VSCpin, RETpin, D0pin the XLK pin GP8, PLK pin GP10, HS pin GP11, VS pin GP13, D0 pin GP0 Regards Bryan |
||||
| phil99 Guru Joined: 11/02/2018 Location: AustraliaPosts: 3259 |
If you look at the Hardware Details page in the manual GP14 and GP15 are I2C channel 2. So all commands using System I2C on those pins need to start with I2C2. System I2C is always Open so trying to open or close it it wont work. Just use:- I2C2 WRITE addr, option, sendlen, senddata [,sendata ..] and I2C2 READ addr, option, rcvlen, rcvbuf As per Appendix B. Someone else will have to help with the camera. Edited 2026-06-02 16:54 by phil99 |
||||
 Print this page |
 |
The Back Shed's forum code is written, and hosted, in Australia. | © JAQ Software 2026 |
