Recent content by nitin100

Larrylix - There are cheaper versions available at aliexpress with similar functionality. Cai_Support - Yes - i am aware of Ross board - But I was talking about integrating that in the next version.   PS - Waiting for the utility to change MAC -email is nitin at samavia dot com

Thank you - its nitin/samavia/com.       The change of regulator in 2.3.8 is a massive improvement. If you are looking for another improvement - please make another version with opto isolated inputs and outputs. This will then be a truly industrial board ready to compete with big boys.   And...

Hello I am coming back to this forum after a year. Previously, I had reported that CAI webcontroller was failing in high temperature conditions. I remember CAI support mentioned that Maxim came back to them and notified them that the chip works till 85C. Anyway - I refired the heat stroked...

Cai_support - Ofcourse the temps mentioned are from spare DS in the box (45C). Outside temp today (highest) was 39.7. After 45C, the boards starts to hang(like network not working, DS sensors going unbound). In evening, after reset, it works full night.   CPU = 30C+Room = 75C. So, my CPU is...

Hello I will chip in - (after the initial rage)   The board is in power db box, 45cx45cmx20cm. The box contains relays(no heat), power supply(little heat), SSRs(no heat as they drive relays). Cooling and air shifting is provided by 2 vented holes, approx. 10x20x20cm openings.Air shifting is...

More grief- Looks like Ethernet has crapped out. However times I try to restart, ping, its not coming up. Hearbeat is on. Will try in evening when temperature is lower(for me to work!)   Point to note- This connectivity is provided by 39E homeplug, Tchibo - Made in China, which is subjected to...

I will update more later - The board has not failed - Its still working.   TTL outs - they drive simple ssds.   The reason I said "failing" because temp sensors start disappearing after few hours. After cooling the CAI- they come back!! (they are from Amazon, US supplier - So hopefully has some...

Update - First day - 2 outputs (TTL1 and TTL2) crapped out. Showing 0.3V now. Temp sensors - Cannot detect more than 1 after a day. (Cat5 cable)     I believe the mc is slowing getting ion migration (high temperature), not the power regulator.   Lesson learnt - Hobby board - Never apply in real...

Ok In field experience - Regulator is hot, heatsink of mc is hot. Cannot touch for more than 5s. Same temp of both. CAI should take note as its only 40c today. (55c is normal in june jul) What is of more concern is the capacitor next to regulator is getting equally hot. Its rated 16v. Not good...

START CHECK_H: SET VAR1 H1 #VAR1=HUMIDITY TSTLT VAR1 80 SET OP1 0 TSTLT VAR1 80 SET OP2 0 TSTLT VAR1 80 # CHECK IF HUMIDITY IS GREATER THAN 80 -IF YES DONT MOVE FROM HERE GOTO CHECK_H AIR_T: SET VAR2 T1 # T1 IS LEFT SIDE SET VAR3 T2 # T2 IS RIGHT SIDE SET VAR4 T3 # T3 IS TOP...

Labels = MOTOR_RIGHT_OFF etc?   ADD command - Yes  - It will be corrected. Any other mistakes you can find (can save me huge amount of time in debugging as I have no background in PLC kind of thing)

Also(unrelated to this) I want to record number of starts + hours run on each motor, which should persist through reboots. In the manuals, I cannot see variables which can be incremented and persist through reboots.   Is it possible?

START CHECK_HUMIDITY: SET VAR1 H1 #VAR1=HUMIDITY TESTLT VAR1 80 # CHECK IF HUMIDITY IS GREATER THAN 80 -IF YES DONT MOVE FROM HERE GOTO CHECK_HUMIDITY CHECK_AIR_TEMP: SET VAR2 T1 # T1 IS LEFT SIDE SET VAR3 T2 # T2 IS RIGHT SIDE SET VAR4 T3 # T3 IS TOP T1 ADD T2 VAR5 VAR5 ADD T3...

Hello Please guide in achieving the following(controlling only TTL1, TTL2)   Temp Sensors 1-5, Humidity sensor H1. TTL1 and TTL2 should never be on simultaneously.   /Logic-   If H1>80, TTL1=0, TTL2=0 don't process below and wait for H1 <80 If H1<80 Then T0=(T1+T2+T3)/3 If T0-T4>0, TTL1=1...

Ok - I am keeping it as it is - As I can see the microcontroller with heatsink on is as hot.   Its not worth the trouble to put heatsink on.   I will run it on 10.3V and will use CAI judgement of not putting heatsink to VR if run by less than 12V