Page 5 of 9
Re: Any Arduino Gyro Projects
Posted: 15 Jul 2020, 16:35
by Martin
I've updated the firmware to "version 2" - now with reduced gain ranges, and using the gyro module's 2000 degree per second range. I updated the original post, so you can download it from the bottom of page 2.
Also there is the "manual", which is a work in progress, but does currently cover how to set up your Arduino IDE to support the ATtiny. I need to add in a section on how to connect up your USBasp to the gyro - I'm working on that right now, and will update again once it's done.
Re: Any Arduino Gyro Projects
Posted: 15 Jul 2020, 18:12
by Pchristy
Looking forward to this!
--
Pete
Re: Any Arduino Gyro Projects
Posted: 15 Jul 2020, 18:38
by Martin
Thanks Pete! I've now updated the manual to also include how to wire up your USBasp. Let me know if you hit any snags or have any questions.
When you compile the sketch and press the 'upload' button some LEDs on your USBasp should light up for a while during the transfer process. Mine takes a surprisingly long time - maybe thirty seconds usually, and a minute or so if I edit the config.h file to put the gyro in debug mode (which makes the code larger).
Maybe there is something wrong with the USBasp I'm using, but you shouldn't worry if the upload takes longer than you expect.
I still need to cover how to use the Debug mode in the manual, and also some details on how to build the gyro in the first place - but Pete shouldn't need those parts to continue with his testing.
Re: Any Arduino Gyro Projects
Posted: 16 Jul 2020, 03:21
by bluejets
Hi Martin,
Are you releasing the STL files for the box also..??
Re: Any Arduino Gyro Projects
Posted: 16 Jul 2020, 08:12
by Pchristy
One quick question, Martin: 5v or 3.3v for the USBASP programmer?
The note you included with the gyro warns about voltages less than 4v.
I suspect that's because of on-board regulators, but can you confirm the correct programming voltage, please?
Cheers,
--
Pete
Re: Any Arduino Gyro Projects
Posted: 16 Jul 2020, 11:20
by bluejets
Hi Pete,
5v shown in the video @ around 8:27 or there abouts.
Cheers Jorgo
Re: Any Arduino Gyro Projects
Posted: 16 Jul 2020, 13:27
by Pchristy
Just to clarify, I'm talking about the USBASP setting. There's a little slide switch for 3.3 or 5v. This seems to be for programming rather than operating.
I know that something I've programmed had to use 3.3v, and I've always left it set to that. I thought it was Phil's encoder, but maybe mistaken.
Not had any problems at 3.3v, but just wanted to check as I'm relatively inexperienced with Arduino stuff!
I was hoping to do the update today, but home life has interfered and it may be tomorrow now!
--
Pete
Re: Any Arduino Gyro Projects
Posted: 16 Jul 2020, 17:11
by Pchristy
Update: I've hit a problem! Neither of my USBASP programmers has the link shown in the video for low speed mode!
I tried to upload the "bootloader" in the default mode, but just got a load of error messages!
Since it has already had the "bootloader" installed once, I thought I'd try just uploading the sketch. That seemed to work - at least it completed and verified - but the gyro now doesn't work. The servo responds to the transmitter only in one direction, and the gyro isn't functioning.
Hopefully, I haven't damaged the electronics, but unless I can find a USBASP with slow mode, I'm stuck!
--
Pete
Re: Any Arduino Gyro Projects
Posted: 16 Jul 2020, 18:10
by Martin
5V is the correct setting for the ATtiny85.
The fast/slow link shouldn't be needed Pete - I found that some Digisparks need it when first 'burning bootloader' (which actually just sets the so-called 'fuses' of the ATtiny to make it work with the 16MHz clock). As you said, that's already been done for your gyro, and you shouldn't need to do it again.
Have you definitely plugged the two channels to your receiver back as before? The brown-red-orange lead is the 'rudder' channel, and the black-red-white one the mode and gain channel. The 'signal' pins are orange and white respectively.
If those are correct the next thing to try is uploading the sketch again. The blue-green 'status line' down near the bottom of the Arduino IDE should show "Uploading..." for a while (about 30 seconds on mine) and then "Done uploading." with no error messages below - the black and white part below the status line should show:
Code: Select all
Sketch uses 2882 bytes (35%) of program storage space. Maximum is 8192 bytes.
Global variables use 49 bytes (9%) of dynamic memory, leaving 463 bytes for local variables. Maximum is 512 bytes.
If you go to the FIle menu, Preferences item, one of the options there is "Show verbose output during:" with tick boxes for compliation and upload. If I tick just the upload box on mine then this is what is displayed in the black and white box (don't worry about most of it, the important bit is at the end where it says "avrdude: 2882 bytes of flash verified. avrdude done. Thank you."
Code: Select all
Sketch uses 2882 bytes (35%) of program storage space. Maximum is 8192 bytes.
Global variables use 49 bytes (9%) of dynamic memory, leaving 463 bytes for local variables. Maximum is 512 bytes.
C:\Users\Desktop\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/bin/avrdude -CC:\Users\Desktop\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf -v -pattiny85 -cusbasp -Pusb -Uflash:w:C:\Users\Desktop\AppData\Local\Temp\arduino_build_324926/gyroMPU6050.ino.hex:i
avrdude: Version 6.3-20190619
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "C:\Users\Desktop\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf"
Using Port : usb
Using Programmer : usbasp
AVR Part : ATtiny85
Chip Erase delay : 400000 us
PAGEL : P00
BS2 : P00
RESET disposition : possible i/o
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
eeprom 65 12 4 0 no 512 4 0 4000 4500 0xff 0xff
flash 65 6 32 0 yes 8192 64 128 30000 30000 0xff 0xff
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
lock 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
lfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
efuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
Programmer Type : usbasp
Description : USBasp, http://www.fischl.de/usbasp/
avrdude: auto set sck period (because given equals null)
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0x1e930b (probably t85)
avrdude: NOTE: "flash" memory has been specified, an erase cycle will be performed
To disable this feature, specify the -D option.
avrdude: erasing chip
avrdude: auto set sck period (because given equals null)
avrdude: reading input file "C:\Users\Desktop\AppData\Local\Temp\arduino_build_324926/gyroMPU6050.ino.hex"
avrdude: writing flash (2882 bytes):
Writing | ################################################## | 100% 23.18s
avrdude: 2882 bytes of flash written
avrdude: verifying flash memory against C:\Users\Desktop\AppData\Local\Temp\arduino_build_324926/gyroMPU6050.ino.hex:
avrdude: load data flash data from input file C:\Users\Desktop\AppData\Local\Temp\arduino_build_324926/gyroMPU6050.ino.hex:
avrdude: input file C:\Users\Desktop\AppData\Local\Temp\arduino_build_324926/gyroMPU6050.ino.hex contains 2882 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 13.36s
avrdude: verifying ...
avrdude: 2882 bytes of flash verified
avrdude done. Thank you.
If yours is saying that the flash verified, and you've definitely plugged the wires to the correct receiver channels, then I guess it is broken. No worries, I can send you another one if you wish.
Re: Any Arduino Gyro Projects
Posted: 16 Jul 2020, 18:14
by Martin
Jeff (bluejets on the forum) has PM-ed me this nice schematic diagram. Thanks Jeff!
I'll include it in the next revision of the "manual". Click on the schematic to see a clearer view - I think the inline version is being resized for display which makes it look blurry (on my PC screen anyway).