CAI_Support
Senior Member
Ross published his PLC code to talk to SPI devices on a WC8 board. If any sensor requires SPI bus, I am sure you could follow Ross' example to talk to the sensor using PLC programming.
Sensor List
- Thread starter Efried
- Start date
CAI_Support
Senior Member
We planned to have cellular modem to work through RS232 port on WC32, however, that feature has not finished, Microchip keeps changing its development platform slowed down us from finishing all the features. Otherwise, you could use text message to control each other over cell phones.
CAI_Support
Senior Member
You mean wifi? You can't beat this little wifi bridge, which tested working great with WebControl:
TL-WR702N from TP-Link, selling $19.99 on Amazon.
TL-WR702N from TP-Link, selling $19.99 on Amazon.
CAI_Support
Senior Member
WebControl board is, in most cases, sealed in metal enclosure. There is no RF device can communicate well in an enclosed metal enclosure.
In addition, RF components is a lot more expensive for smaller quantity. When I say small quantity, I mean in less than 20000 pieces. Most NIC manufacture, including RF chip, they don't even provide development support for less than 200K quantity in one order.
You probably see those RF modules are lower cost, because they can sell in huge quantity with the general purpose. If we can get the cost down, we will definitely want to integrate RF in, then users can have choice.
Thanks for the suggestion.
In addition, RF components is a lot more expensive for smaller quantity. When I say small quantity, I mean in less than 20000 pieces. Most NIC manufacture, including RF chip, they don't even provide development support for less than 200K quantity in one order.
You probably see those RF modules are lower cost, because they can sell in huge quantity with the general purpose. If we can get the cost down, we will definitely want to integrate RF in, then users can have choice.
Thanks for the suggestion.
LarsK
Active Member
Never tried this one, but it should work?
http://www.elecrow.com/sensors-c-111/liquid-flow-c-111_156/g1-water-flow-sensor-p-792.html
http://www.elecrow.com/sensors-c-111/liquid-flow-c-111_156/g1-water-flow-sensor-p-792.html
CAI_Support
Senior Member
Yes, it should work, please use the frequency counter to count the speed of sensor output. Frequency counter once enabled on TTL IP1.
Has anyone used the GRI 2800 water sensor LarsK mentioned?
I've been thinking about using it in conjunction with another project to monitor basement water heater. My concern is false alarms - being in the basement just above the concrete floor or worse failure to alert due to dirt build up over the years.
It appears to be a high quality part by a reputable company.
http://www.grisk.com/specialty/2800water_sensor.html
/tom
I've been thinking about using it in conjunction with another project to monitor basement water heater. My concern is false alarms - being in the basement just above the concrete floor or worse failure to alert due to dirt build up over the years.
It appears to be a high quality part by a reputable company.
http://www.grisk.com/specialty/2800water_sensor.html
/tom
LarsK
Active Member
Another one. Will weight what ever you want up to 20Kg. (44 pounds or so)
Link: http://www.elecrow.com/sensors-c-111/others-c-111_146/weight-sensor-scales-kit-20kg-p-714.html
Link: http://www.elecrow.com/sensors-c-111/others-c-111_146/weight-sensor-scales-kit-20kg-p-714.html
CAI_Support
Senior Member
There was one person posted before his scale using a sensor he purchased from Amazon. That post is on this forum, he posted his schematic, PLC code and result.
