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How many 1W sensors can be used with SigkSens, and ESP8266?
#1
Trying to hook up a bunch of them. 7 But when I connect them all I get Null. Too many so I should split on two ESPs or bad connection. The wires on the 1W's are thin....
//Ranur
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#2
(02-10-2020, 05:33 PM)Ranur Wrote: Trying to hook up a bunch of them. 7 But when I connect them all I get Null. Too many so I should split on two ESPs or bad connection. The wires on the 1W's are thin....
//Ranur

Hello Ranur

i would try to set down the pullup resistor on the bus, the many cables will give more capacity.
i would try it with half the ohms for beginning.

holger
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#3
(02-11-2020, 04:03 AM)holgerw Wrote:
(02-10-2020, 05:33 PM)Ranur Wrote: Trying to hook up a bunch of them. 7 But when I connect them all I get Null. Too many so I should split on two ESPs or bad connection. The wires on the 1W's are thin....
//Ranur

Hello Ranur

i would try to set down the pullup resistor on the bus, the many cables will give more capacity.
i would try it with half the ohms for beginning.

holger
Hi! Thanks!
Tried a while more last night and discovered that 3 sensors worked all right, but once I connected the forth I got no signal. So a 2.2 kOh instead of the 4.7 kOh should do the trick you think?
//Ranur
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#4
(02-11-2020, 05:51 AM)Ranur Wrote:
(02-11-2020, 04:03 AM)holgerw Wrote:
(02-10-2020, 05:33 PM)Ranur Wrote: Trying to hook up a bunch of them. 7 But when I connect them all I get Null. Too many so I should split on two ESPs or bad connection. The wires on the 1W's are thin....
//Ranur

Hello Ranur

i would try to set down the pullup resistor on the bus, the many cables will give more capacity.
i would try it with half the ohms for beginning.

holger
So a 2.2 kOh instead of the 4.7 kOh should do the trick you think?
//Ranur


You can‘t do any wrong, try the 2k pullup resistor.
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#5
*Boomschackalacka*
Worked as a charm with less pull up resistance. Some trial and error, but mostly due to bad connectors on the D1 Mini. Now it is all ready. 7 1W sensors fitted as well as a Voltage meter hooked up on the analog input. Must be calibrated when properly fitted though. Got some variances now depending on cables and such. Next step - installation! :-D


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#6
Fine. Greetings from the Danube. Holger
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