Search found 5 matches

by dongfang
Thu Mar 15, 2012 9:59 am
Forum: Ideas
Topic: Dual arduino board
Replies: 1
Views: 794

Dual arduino board

Hi All, I'm just interesting in GPS and 16Bit PWM feature that have been implemented in Mega 2560 board. However I do not have that board and I think: 1. it is a bit big for multi-copter 2. it has the same MIPS to those small arduino board(like pro mini). So, is it possible or necessary that: 1. Usi...
by dongfang
Wed Mar 14, 2012 1:34 pm
Forum: Ideas
Topic: Integration of SRF08 I2C sonar sensor (done)
Replies: 89
Views: 46514

Re: Integration of SRF08 I2C sonar sensor (done)

Hi All, I suppose some of you have met the motor noise interference issue like me. Though I'm not using an I2C sonar, but obviously my sonar won't work well if it leave the ground too high, as the sonar generate random distance data when the motor is running. (Like nhadrian said, his sonar only work...
by dongfang
Wed Mar 14, 2012 1:18 pm
Forum: Ideas
Topic: Attemp to integrate sonar (ultrasonic sensor)
Replies: 265
Views: 147659

Re: Attemp to integrate sonar (ultrasonic sensor)

Well, I found the same issue that mahowik met: the motor noise is too big, and Sonar return wrong distance data to the board. I've tried to isolate the noise but failed.

It's sonar's issue...
by dongfang
Tue Mar 13, 2012 5:12 pm
Forum: Ideas
Topic: Attemp to integrate sonar (ultrasonic sensor)
Replies: 265
Views: 147659

Re: Attemp to integrate sonar (ultrasonic sensor)

Another things is, my sonar(called SRF-06) has the same sample code to the DYP-ME007, and I can use Vallekano's HCSR04 code in it.

That's means SRF-06, DYP-ME007 and HCSR04 are mostly the same to developer (maybe they are the same).
by dongfang
Tue Mar 13, 2012 5:03 pm
Forum: Ideas
Topic: Attemp to integrate sonar (ultrasonic sensor)
Replies: 265
Views: 147659

Re: Attemp to integrate sonar (ultrasonic sensor)

Hi All, I think Vallekano's code do not work in my board(Arduino Nano) as it miss one "pinMode(HCSR04_EchoPin, INPUT);" command. And I've merged Vallekano's code and mahowik's code together, so: 1. It still use D8 for TX pin, and D12 for RX pin 2. alt-hold data based on sonar data in range...