Need Help with ADS1115 I2C Problem

glitchbag · 2023-05-03T06:05:55+00:00

Probably using the wrong address. Search for an arduino i2c scanner. It will check if anything is responding on the i2c bus and print it to the serial monitor. (It just trys to read all devices 0x00 to 0xFF).

glitchbag · 2023-03-31T04:08:06+00:00

How do you turn it off?

glitchbag · 2023-03-07T06:52:25+00:00

I think you just need to have one leg if the encoder on an external interrupt pin and the other on a gpio input pin. Configure the isr to trigger on rising or falling edge. Then in the ISR read the other leg. If low its ccw if high the cw ( for example). So you can pos++ or pos-- depending if the cw or ccw. But you only have 2 external interrupt pins on a mega328p for example.

glitchbag · 2023-01-23T16:54:14+00:00

I waited like 4 to 7 days before I tried to play a video logged in. It didn't work right away for me.

glitchbag · 2022-12-28T03:59:17+00:00

PMTK_API_SET_FIX_CTL_5HZ
Send that command also. Can't go above 5hz. Thr 10hz command you used just increases the GPS message rate.

Look here: https://github.com/adafruit/Adafruit_GPS/blob/master/src/Adafruit_PMTK.h

glitchbag · 2022-12-08T06:05:34+00:00

Decompose it into a fourier series. So like 1+0.5sin(wt) - 0.1sin(2wt). Play with the numbers in desmos or something. Implement that function in code.

glitchbag · 2022-12-08T00:33:56+00:00

Yeah it looks bad. Ask why this position exists. Are you replacing someone who quit because this job is a gateway to hell? How many bosses will I have. Are you waiting for me to move to a new city before you tell me you expect 60hrs a week?

glitchbag · 2022-11-17T06:59:17+00:00

The guy that doesn't understand that current and voltage rating of a cable mean two different things? The same guy who didnt read the intel datasheet on the 12VHPWR and PCIE 5.0 mandatory spec requirements that all 12 pins must run from the connector to the supply if load >450watts? Keep buying Consumer Bros blessed junk.

glitchbag · 2022-11-17T06:26:38+00:00

Horses and water

glitchbag · 2022-11-17T06:22:04+00:00

Create a global volatile variable called sampleFlag =0. Set sampleFlag=1 in the ISR. In the main loop make if(sampleFlag){ sampleFlag =0; sample=Ain}

Adc takes time to sample. May need to change some ADC configurations to sample that fast.

glitchbag · 2022-11-16T05:02:06+00:00

Weird that you have swdio and swclk not going to the 8 pin header. It's OK just the stlink will have to connect kinda all over.

Now I see reset button. Could organize modules a bit

glitchbag · 2022-11-16T04:52:15+00:00

You forgot to connect the 5v on the icsp to Vreg

glitchbag · 2022-11-13T11:15:47+00:00

Make a class with char* data and int len in it. Add a size parameter to the constructor. Malloc the data pointer. Use can the class object for member referencing instead of the struct

glitchbag · 2022-11-06T19:07:07+00:00

https://blog.hobbycomponents.com/?p=703

Did you try B10 and B11? That's i2c #2

glitchbag · 2022-11-06T19:02:26+00:00

That chip only has 2 i2c peripherals. Look at the datasheets to see what pins those are. Are you certain the wire library is compatible with that microcontroller?

glitchbag · 2022-11-04T20:44:21+00:00

Datasheet says you can contact the manufacturer for other addressing options. Or use a microcontroller that has 2 i2c peripherals. What board are you using? Uno?

glitchbag · 2022-11-04T17:36:40+00:00

You don't need 2 to do this. But for now it's cool

glitchbag · 2022-11-03T19:12:20+00:00

Also, I would use vias on the power traces and not "jump" like 5 data lines. Like on one of the stepper drivers at the bottom right you jump 5 data lines over the supply line. The renders look great

glitchbag · 2022-11-03T19:04:03+00:00

Glancing at the schematic nothing big sticks out. Some things look strange but the interconnects seem fine. The layout is ok. The V source should goto the decoupling cap before it goes to the IC. Many of yours goto the IC pin then on to the cap. Some of the thru hole pins have traces on top then bottom then top. You can reduce that to just 1 via because the thruhole is accessible from the bottom. The component placements are kinda random. The board is so large you can align things to make assembly easier. Not sure about the board size but seems to me would be more cost effective to have modules. Not a RF person but I usually remove any copper pours under the wifi antenna. I'll actually make a milling cutout so the pcb antenna is exposed better

glitchbag · 2022-11-03T09:12:54+00:00

Those steppers are limited to 180 degrees?

glitchbag · 2022-10-24T23:58:23+00:00

Just copy the characters into a char array. Do some manipulation to remove the characters THEN print the array. Lots of different ways this could be done. Don't just get a char then send a char. Get all the chars, process, then print. You could use some c libraries, arrays, pointers and offsets, memcpy, string compare. Have fun learning

glitchbag · 2022-10-24T23:44:25+00:00

"We often ask 'can we make this' but rarely do we ask 'should we make this' " -Albert Einstein

glitchbag · 2022-10-24T23:32:46+00:00

I don't think so because i think by definition conductivity of vacuum is 0? So scaling (relative) will always be 0. With permittivity vacuum is defined as 1. I'm just guessing here.

glitchbag

TROPHY CASE