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by breno
Wed Jan 28, 2015 6:45 pm
Forum: Automation, sensing and robotics
Topic: Pigpio radio receptor
Replies: 13
Views: 1693

Re: Pigpio radio receptor

My radio transmitter is OOK, that's why :( Thanks for all the helps and sorry for my lack of knowledge. Living and learning
by breno
Wed Jan 28, 2015 2:50 am
Forum: Automation, sensing and robotics
Topic: Pigpio radio receptor
Replies: 13
Views: 1693

Re: Pigpio radio receptor

Since the ∆t on the graph is 50us and there is 29 high's and 29 low's. (29+29) x 1000 ÷ 50 = 1160 BPS or 29 x 1000 ÷ 50 = 580 BPS Is this way to calculate the BPS ? If it is correct, it didn't work :oops: Some people are saying the BPS is around 1800 and 1900. Should I test for each one between thes...
by breno
Tue Jan 27, 2015 8:12 pm
Forum: Automation, sensing and robotics
Topic: Pigpio radio receptor
Replies: 13
Views: 1693

Re: Pigpio radio receptor

Not much. Maybe 2 or 3cm. But for now this is not a problem. I will change the receptor for a better one. At 5v I'm getting ~20cm.
by breno
Tue Jan 27, 2015 7:33 pm
Forum: Automation, sensing and robotics
Topic: Pigpio radio receptor
Replies: 13
Views: 1693

Re: Pigpio radio receptor

This is a screen shot of piscope. When I was taking the screen shot the blue line was trimmed, It is possible just to see its little piece on the bottom right. The values are right.
piscope.png
Piscope screen shot
piscope.png (28.44 KiB) Viewed 1461 times
receiver at 3,3 -> no
I changed to 5v, piscope shows much more noise than when it was at 3v3.
by breno
Tue Jan 27, 2015 2:50 pm
Forum: Automation, sensing and robotics
Topic: Pigpio radio receptor
Replies: 13
Views: 1693

Re: Pigpio radio receptor

Yes, I can. I'll do that. Is my receiver wired properly ? The data is on pin 10 and vcc is on 17 (3v3) and on the vw I changed the RX gpio to 10. I am NOT using any resistors on the receiver.

Can you give me a hint to make the interpretation of the piscope output ?
by breno
Mon Jan 26, 2015 9:32 pm
Forum: Automation, sensing and robotics
Topic: Pigpio radio receptor
Replies: 13
Views: 1693

Re: Pigpio radio receptor

Well, I used the default BPS (2000). I don't know how to discover the BPS of my gate control but I read this kind of device normally use 2400. I changed but still not working. Is there any way to discover it ? I've installed the Piscope. I ran it and when I press the button, some squared waves appea...
by breno
Sun Jan 25, 2015 1:14 am
Forum: Automation, sensing and robotics
Topic: Pigpio radio receptor
Replies: 13
Views: 1693

Pigpio radio receptor

Hello, I am trying to receive signal from a 433Mhz gate control using joan pigpio and https://github.com/joan2937/pigpio/blob/master/EXAMPLES/Python/VIRTUAL_WIRE/vw.py the python code to receive the signal. The vw code runs without error but it doesn't shows the control signal received. The receiver...
by breno
Fri Jan 23, 2015 9:07 pm
Forum: Automation, sensing and robotics
Topic: 433Mhz Reciever for existing devices
Replies: 23
Views: 28325

Re: 433Mhz Reciever for existing devices

On the Joan's vw.py, what adaptations should be done ? I found this great code today but I don't know how to adapt it. I noticed that I have to change "Specify Pi, rx gip and baud". My receiver data pin is connected to the pin 12 and power to the 17. I'm keeping the BPS at 2000. Then I tried to run ...
by breno
Tue Jan 20, 2015 4:45 pm
Forum: Automation, sensing and robotics
Topic: Trying to receive 433mhz signal in Python
Replies: 1
Views: 1019

Re: Trying to receive 433mhz signal in Python

I have the same issue as you. I want to receive data and the majority of topics talk about transmit them. I am pretty new in this Pi/Python stuff, but something that came in my mind is if you can capture this binary number with python, you can use its function that convert binary numbers into decimal.
by breno
Mon Jan 19, 2015 8:32 pm
Forum: Automation, sensing and robotics
Topic: Python + 433MHz RF Transmitter and Receiver
Replies: 17
Views: 46400

Re: Python + 433MHz RF Transmitter and Receiver

I was trying to install the quick2wire on my pi. All the links on their tutorial are broken. It seems it is not under development anymore. Is there any alternative solution for quick2wire library on the Softpy's code ?
by breno
Sat Jan 17, 2015 2:00 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Always Getting a UU on i2cdetect
Replies: 13
Views: 11643

Re: Always Getting a UU on i2cdetect

Changing the battery the 68 showed up !! But the 50 still there, is this a problem ? Thanks for the answers !
by breno
Sat Jan 17, 2015 1:24 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Always Getting a UU on i2cdetect
Replies: 13
Views: 11643

Re: Always Getting a UU on i2cdetect

I changed for all vdc's pins and the 50 keeps. Is it possible to be a hardware problem, like the rtc module broken ?
by breno
Sat Jan 17, 2015 12:15 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Always Getting a UU on i2cdetect
Replies: 13
Views: 11643

Re: Always Getting a UU on i2cdetect

Thanks for the replies. One last question... in all the topics i've been reading about setting up a rtc, they all got the 0x68. I'm using Raspbian, and the same rtc module (RTC-DS1307), just like them. Is it possible to get a different position ? Like 0x50 ?
by breno
Fri Jan 16, 2015 7:06 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Always Getting a UU on i2cdetect
Replies: 13
Views: 11643

Always Getting a UU on i2cdetect

Hi, today I followed some tutorials to set up a rtc. I did the i2cdetect command with my rtc module connected and i've got an UU on bx10 and 50 on 0x50. I googled a lot to solve this but no answers. Then I've tried to run the i2cdetect command without the rtc module connected and again i got the UU ...

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