stokerkontrol (woody looging of data on dd-wrt)
: 21 mar 2014 11:18
Hi
I write this in English because at least one of the persons who is active in the Raspberry Pi tread is not Danish. Second with all the technical word it might soon turn into a lot of english words anyway.
My project is just another version of the Raspberry Pi project. As HW I will use a wireless router with open source linux code called dd-wrt.
The task is to gather data from a Woody/Scotte controller version 6, which has an RS 232 port (I know I have to add the level voltage translator for RS232 levels). The HW I have is a Cisco Linksys E900 with an internal RS232 port. Beside logging it must also act like a router expanding one ethernet cable to 2 or 3.
I am an electronic Engineer, but some basic knowledge of linux and programming but very limited handson. I will properly not be able to complete this task without some help from more competent people.
I have done step one which is to load the standard open source dd-wrt code on router instead of the preloaded Cisco code.
I assume the code allready holds a driver for the RS232 port but I do not know for sure, I will find out.
E900 has 8 MB flash and 32 MB ram
The box must collect data and store them in RAM (assuume 16Mb free out of 32 Mb). From there the data will be polled by a PC that is not allways turned on.
I do not know the amount of data to be store by now and thereby how long time
Next step is to decide if I should use some of the stokerkontrol java code (no display of data) eller python code made for Raspberry Pi. My best guest is that I will use the Python scripts.
Please fell free to comment
I write this in English because at least one of the persons who is active in the Raspberry Pi tread is not Danish. Second with all the technical word it might soon turn into a lot of english words anyway.
My project is just another version of the Raspberry Pi project. As HW I will use a wireless router with open source linux code called dd-wrt.
The task is to gather data from a Woody/Scotte controller version 6, which has an RS 232 port (I know I have to add the level voltage translator for RS232 levels). The HW I have is a Cisco Linksys E900 with an internal RS232 port. Beside logging it must also act like a router expanding one ethernet cable to 2 or 3.
I am an electronic Engineer, but some basic knowledge of linux and programming but very limited handson. I will properly not be able to complete this task without some help from more competent people.
I have done step one which is to load the standard open source dd-wrt code on router instead of the preloaded Cisco code.
I assume the code allready holds a driver for the RS232 port but I do not know for sure, I will find out.
E900 has 8 MB flash and 32 MB ram
The box must collect data and store them in RAM (assuume 16Mb free out of 32 Mb). From there the data will be polled by a PC that is not allways turned on.
I do not know the amount of data to be store by now and thereby how long time
Next step is to decide if I should use some of the stokerkontrol java code (no display of data) eller python code made for Raspberry Pi. My best guest is that I will use the Python scripts.
Please fell free to comment