bagusdj
Member level 3
- Joined
- Nov 25, 2012
- Messages
- 67
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1,286
- Activity points
- 1,766
hi guys, i would like to ask about few basic things.
i want to interface tgs2600 in a at89s52 mcu.
i want to ask about the Load Resistor needed. here is the datasheet:View attachment figaro tgs 2600.pdf
it said the RL is variative, min of 450 Ohm. is it free to choose the RL as long the Ps not exceeding 15mW and bigger than 450 Ohm, while also not exceeding 90k Ohm (RS)?
just want to make sure,since this sensor is difficult to acquire in my place.
i use this url as my reference
**broken link removed**
from the demo it looks that in 8bits,8channels adc the output will ranged 0-255. since smoke sensor reading should be in ppm, what formula that i need?
i googled about conversion and i found this https://digital.ni.com/public.nsf/allkb/397223D9826E1B4E86256F9400735FE5 is it the right calculation that i need?
i want to interface tgs2600 in a at89s52 mcu.
i want to ask about the Load Resistor needed. here is the datasheet:View attachment figaro tgs 2600.pdf
it said the RL is variative, min of 450 Ohm. is it free to choose the RL as long the Ps not exceeding 15mW and bigger than 450 Ohm, while also not exceeding 90k Ohm (RS)?
just want to make sure,since this sensor is difficult to acquire in my place.
i use this url as my reference
**broken link removed**
from the demo it looks that in 8bits,8channels adc the output will ranged 0-255. since smoke sensor reading should be in ppm, what formula that i need?
i googled about conversion and i found this https://digital.ni.com/public.nsf/allkb/397223D9826E1B4E86256F9400735FE5 is it the right calculation that i need?