Search found 9 matches
- Tue May 10, 2016 4:37 am
- Forum: Development Libraries
- Topic: USB TTL programming documentations
- Replies: 7
- Views: 11584
Re: USB TTL programming documentations
If I keep listening to the serial port, I can get something like it occasionally: GET /status/submitp.aspxt1=784&t2=761&t3=0&ph=794&id=zsxking&em=0&em1=0&rem=0&bid=1&key=&ddns=&af=0&sf=0&atohigh=0&atolow=0&r=209&ron=0&roff=255&p...
- Tue May 10, 2016 12:41 am
- Forum: Development Libraries
- Topic: USB TTL programming documentations
- Replies: 7
- Views: 11584
Re: USB TTL programming documentations
i have a regular linux desktop environment working, so having it work on the pi should be doable. How do you develop in your linux environment? Do I just write to the usb serial port like "GET /sa" then read from it? Don't have too much experience working with serial. Would you mind provi...
- Fri Mar 25, 2016 8:17 pm
- Forum: Development Libraries
- Topic: USB TTL programming documentations
- Replies: 7
- Views: 11584
Re: USB TTL programming documentations
Have you tried using USB TTL from a linux environment like from Raspberry Pi? I was trying to use minicom to connect to it, but not seem to be able to communicate. My settings are | A - Serial Device : /dev/ttyUSB0 | B - Lockfile Location : /var/lock | C - Callin Program : | D - Callout Program : | ...
- Fri Mar 25, 2016 1:37 am
- Forum: Development Libraries
- Topic: USB TTL programming documentations
- Replies: 7
- Views: 11584
USB TTL programming documentations
Hi,
Is there any documentation of how to read data via USB TTL cable and write data to it? I want to write a server to use Raspberry Pi to monitor and control reefangel.
Thanks,
Is there any documentation of how to read data via USB TTL cable and write data to it? I want to write a server to use Raspberry Pi to monitor and control reefangel.
Thanks,
- Wed Jun 18, 2014 1:15 am
- Forum: Addons
- Topic: Evergrow/Reefbreeders LED 0-10v expansion dimming
- Replies: 145
- Views: 124237
Re: Evergrow/Reefbreeders LED 0-10v expansion dimming
Does this work with PWM dimming port? I only have RA+ with PWM. Do I need to either get the dimming expansion or another relay box with analog dimming to make this work?
- Sun Mar 16, 2014 11:50 pm
- Forum: Standard
- Topic: PH calibration sudden shift, broken?
- Replies: 5
- Views: 2849
PH calibration sudden shift, broken?
I have been running reef angel for couple months, and having a kind of stable PH, 8.3 before light off and 8.0 before light on. But this morning the ph reads 8.5, unusually high. My first suspect is the sensor error. So I tested the 7.0 calibration solution, read 7.8. Then I recalibrated it and it r...
- Thu Feb 06, 2014 10:13 pm
- Forum: Standard
- Topic: Inaccurate PH sensor?
- Replies: 22
- Views: 13012
Re: Inaccurate PH sensor?
I finally found out that my sensor's read was correct. I thought my tank's ph was 8.2 because I use filtered nature sea water. I also have a brine shrimp culture that is highly aerated. When testing its ph with calibrated probe, it reads 8.0, while my tank's reading is 7.6. So it's my tank has ph pr...
- Tue Feb 04, 2014 2:49 am
- Forum: Standard
- Topic: Inaccurate PH sensor?
- Replies: 22
- Views: 13012
Re: Inaccurate PH sensor?
I finally get to test around stray voltage. The meter did show a 1.7v voltage. It's that considered high? I try to test water in a cup, only 0.01 difference.
I also bought another ph probe from eBay. But it basically give the same result, reading the tank ph as 7.6 ~ 7.7 after calibration.
I also bought another ph probe from eBay. But it basically give the same result, reading the tank ph as 7.6 ~ 7.7 after calibration.
- Sat Jan 18, 2014 12:53 pm
- Forum: Standard
- Topic: Inaccurate PH sensor?
- Replies: 22
- Views: 13012
Inaccurate PH sensor?
My PH sensor seems not working probably, always gives reading around 7.6 while the actual value is 8.1~8.2 from API kit. The tank is looking good so I don't think 7.6 is anywhere close to true value. I have used 3 different kinds of PH solutions to calibrate many times, every time give similar value...