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Calibration of the Bosch BNO055 IMU (interfaced with ATmega32U4)
Hi Everyone, Sorry for the late update. The problem was a faulty BNO055 IMU chip. The calibration problem was solved by replacing the defective IMU. On the other hand I am not...
Thursday, 23 May 2019 - 12:27
I2C working intermittently on ATMEGA32U4
Hi, The issue was indeed the low F_CPU speed. After changing the Clock Prescalar division factor to 1(which makes my F_CPU as 8MHz) from Chuck99's suggestion, I am able to...
Sunday, 23 December 2018 - 16:04
Using high frequency clock sources for ATMEGA32U4
Hi Chuck99, You are amazing! Your solution solved my issue. Thanks a lot and happy holidays!
Sunday, 23 December 2018 - 16:00
Problem with the nRF24L01+ when trying to swap between Transmitter and Receiver
Hi all, Sorry for the late reply. I was able to solve the issue finally. While setting the nRF to TX mode, I was doing this: Write_byte(CONFIG, Read_Byte(CONFIG) | (0 <...
Sunday, 23 December 2018 - 07:02
Calibration of the Bosch BNO055 IMU (interfaced with ATmega32U4)
Hi Jim, I have attached the BNO055 guide for sensor mounting. As you can see I have followed all the basic rules. But I am having a bit of thought about the power line connected...
Saturday, 3 November 2018 - 08:05
Calibration of the Bosch BNO055 IMU (interfaced with ATmega32U4)
Hi Jim, The position of the radio doesn't seem to matter. I tried extending it using wires away form the IMU and the PCB, but still the same result.
Friday, 2 November 2018 - 16:54
Interfacing Bosch BNO055 IMU with ATMega32U4 via I2C
Hi JungleEskimo, Happy to help :) Good luck with your project.
Tuesday, 11 September 2018 - 12:57
Custom ATmega32U4 PCB - Doubts regarding the USB pins (VBUS, UVCC and UCAP)
clawson wrote: fredphil wrote: So why is it different in the Adafruit feather board?   That is something you'd need to ask the designer at Adafruit. On the whole their stuff...
Thursday, 6 September 2018 - 10:34
Custom ATmega32U4 PCB - Doubts regarding the USB pins (VBUS, UVCC and UCAP)
clawson wrote: If you are looking for good 32U4 implementations don't forget the Arduinos too - some are based on 32U4 or have a similar chip (maybe 16U2?) as the USB interface....
Thursday, 6 September 2018 - 10:29
Interfacing Bosch BNO055 IMU with ATMega32U4 via I2C
Hi JungleEskimo, Using the Euler angles are problematic as they suffer from the Gimbal lock. You may want to use the quaternion format for the angles.  I found that...
Wednesday, 5 September 2018 - 09:06
Low data rate when receiving via nRF24L01 with ATmega32U4
balisong42 wrote:50 bytes per second is 20 msec per byte. That matches with the two _delay_ms(10) calls in transmit_data(). A little googling tells me the nRF24L01 has a 32-byte...
Friday, 24 August 2018 - 17:08
Interfacing Bosch BNO055 IMU with ATMega32U4 via I2C
Hi Simon, Interesting rant :)
Monday, 13 August 2018 - 00:49

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