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As from what I have understood Klaus from your question Klaus, I intend to use temperature and humidity sensors with I2C interface, so that the distance is not an issue. Secondly for the communication between different systems and the Host CPU, I am inclined towards Modbus TCP as the...
Thanks Pete. How about the TI MCUs? Got any experience with them? Also, which communication protocol did you use?
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I am very inclined towards using Modbus as the communication protocol..
Hi All,
I hope everything is going well.
I have a very simple application--basically I need 3 temperature and 2 humidity inputs, and need to control 2 relays based on the input values (Need 9 such systems). Also, I need to communicate the temperature and humidity data, as well as the status...
I have contacted Victron energy for the response time of Quattro Inverter/Charger, as that in my view will determine if the system will trip or not. Any other specs you reckon can be important to take a note of?
I work in an off-grid building (fully off-grid!), and I there is a situation now. We have got six resistive heating elements, and each one consumes 6kW (total 36kW for all six). Whenever we have enough power from the sun, I tend to run those heating elements, but I always turn them on one by...
Hi everyone,
I am looking to design an energy management system using microcontrollers. Essentially, I have to control 10 GPOs (9 two gang, and 1 four gang GPO) per house, and there are 20 houses (this means total 200 GPOs).
I need to measure the power flowing through them, as well as their...
The output voltage swing can be upto 16v with Supply voltage of 20v.. I am afraid I understand what this means?
Does this mean that there can be a difference of 4v between the ideal and actual output?
Thanks
I am unable to add any images, but I can explain the issue I am facing with using LM741. The output when non-inverting input is less than the inverting input should be ideally 0v (as this is what I am providing to pin 4), but practically it is 1.6 v. I have tried pull up resistors of different...
I am simply looking for a comparator that does not play around like LM741. I have ordered LT7041 from TI, but it will take some time to be shipped from US, as I am in Australia. Have you any experience with some of the older/easily available ICs which can work fine as a voltage comparator...
Hi,
Yes, my apologies for not being very clear. I am essentially looking to design a thermostat, which can only perform on/off operation based on the basis of temperature recorded by the sensor, which most likely will be a RTD. The temperature range which has to be measured is between -10 to...
Hi all,
Has anybody worked with LM741 and used it for voltage comparison? I am trying to using LM741 to compare two voltages, and essentially then use this as a thermostat. The issue is that once V+ > V-. the output voltage is 1.3 -1.6 v, but not 0 volts. Do I need to add offset? I am only...
Hi Everyone,
I am working on a particular project, for which I need to detect the EAS tags of 8.2 MHz, the anti-theft tags. Any ready-made readers, or a design that I can work on to detect these will be really really helpful.
Thanks,
Qasim
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