Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

Switch small Loads with an N-Mosfet

Da Luxx 30 May 2015, 18:57 last edited by

Hi!
I tried to use an N-Mosfet to switch some self-adhesive LED band specified with 12V / 0.5A. The Mosfet (BS-170) can drain 500mA continuous. Works perfect, and it can be easily used with one of the Relay Sketches. Add an Pulldown Resistor, so the Gate won't keep float in Case of Reset or while Flashing.

It's pretty simple, and you can save some Relays

Greetings
Reply Quote 2
1 Reply Last reply

1
Posts

3.2k
Views

1 out of 1

Suggested Topics

Welcome
Announcements • 23 Mar 2014, 08:24 • hek 2 Apr 2014, 14:39

8

0
Votes

8
Posts

3.2k
Views

2 Apr 2014, 14:39

@NotYetRated Hope you'll find good uses and a fun time while building your sensors.
Water Meter or "How to get Home Assistant to send saved data to an Arduino"
My Project • 18 Oct 2024, 02:19 • OldSurferDude 18 Oct 2024, 02:19

1

0
Votes

1
Posts

13
Views

No one has replied
Long time test done with soil sensor!
My Project • 7 Jan 2025, 09:13 • Nicklas Starkel 13 Jan 2025, 09:10

5

4
Votes

5
Posts

27
Views

13 Jan 2025, 09:10

Wow @Nicklas-Starkel congrats, that sounds great! And thanks for the feedback. Would you mind sharing your setup? Regards, Edi
Nb of possible nodes in a mysensors networks with domoticz
My Project • 13 Jan 2025, 18:10 • GLAB 16 Feb 2025, 01:11

18

0
Votes

18
Posts

133
Views

16 Feb 2025, 01:11

@OldSurferDude yeah, 10 virgin nodes powered up at the same time is a bad idea I seem to remember reading somwewhere here warning aginst that. If yu have node ID trust issues with Mysensors you should move your address to different locaion as 0x00 is used by Mysensors... just sayin..;)
Wio-E5 (STM32 and SX1262)
My Project • 31 Dec 2024, 17:52 • nagelc 25 Jan 2025, 20:21

2

1
Votes

2
Posts

25
Views

25 Jan 2025, 20:21

Quick Range Check on the WIO-E5-LE. The LE version uses only the low power PA, +14dBm max. Using the default settings except for 915MHz #define MY_SX126x_FREQUENCY (SX126x_915MHZ) #define MY_SX126x_LORA_SF LORA_SF7 #define MY_SX126x_LORA_BW LORA_BW_125 #define MY_SX126x_LORA_CR LORA_CR_4_5 I get about 190 meter range, just walking around the neighborhood, line of site except for some trees and power lines. No tuning on the antenna. Just using a 77.9mm wire. Not as dramatic as some have achieved with LoRa radio's, but plenty good enough for my house and yard : )
A low cost energy meter
My Project • 25 Jan 2024, 01:03 • OldSurferDude 12 Aug 2024, 06:03

7

1
Votes

7
Posts

49
Views

12 Aug 2024, 06:03

@OldSurferDude yes, you are correct. this sensor is capable of 50A continuous, which safely I would make it working at 40A max., but for such an important load as in your case I would go for a beefier one, like the ACS75x, 77x, but at this point I would also change the node's form factor for space and insulation reasons. On my application on the RV I have a max. curr. of 13A running on a AWG14-16 cable (European rules for RVs), so I did not ask myself too many questions beside, of course, safety. About the signal, it will be a sinusoidal signal swinging around Vcc/2. Vcc can be easily measured internally on the ATmega328. On all my DC sensors I measure Vcc at every loop, just before measuring the ADCs. Honestly, when the space is not an issue like in my RV, I would rather use a ring core current transformer, and I would get rid of noise, response time, power dissipation, but over all no need to cut any cable. Long story short, it has been a nice experiment and I used it for 6 months, and then I switched back to my RF-NANO based RS485-Modbus - Mysensors bridge connected to an off-the shelf power analyzer. Just for fun I attach a pic of my 12Vdc sensors installed on my RV. Forgive me for the spaghetti wiring on the right side, but this is an area that needs improvement.

Switch small Loads with an N-Mosfet

Suggested Topics

Welcome
Announcements • 23 Mar 2014, 08:24 • hek 2 Apr 2014, 14:39

Water Meter or "How to get Home Assistant to send saved data to an Arduino"
My Project • 18 Oct 2024, 02:19 • OldSurferDude 18 Oct 2024, 02:19

Long time test done with soil sensor!
My Project • 7 Jan 2025, 09:13 • Nicklas Starkel 13 Jan 2025, 09:10

Nb of possible nodes in a mysensors networks with domoticz
My Project • 13 Jan 2025, 18:10 • GLAB 16 Feb 2025, 01:11

Wio-E5 (STM32 and SX1262)
My Project • 31 Dec 2024, 17:52 • nagelc 25 Jan 2025, 20:21

A low cost energy meter
My Project • 25 Jan 2024, 01:03 • OldSurferDude 12 Aug 2024, 06:03

0
Online

11.5k
Users

11.1k
Topics

112.8k
Posts

Switch small Loads with an N-Mosfet

Suggested Topics

Welcome Announcements • 23 Mar 2014, 08:24 • hek 2 Apr 2014, 14:39

Water Meter or "How to get Home Assistant to send saved data to an Arduino" My Project • 18 Oct 2024, 02:19 • OldSurferDude 18 Oct 2024, 02:19

Long time test done with soil sensor! My Project • 7 Jan 2025, 09:13 • Nicklas Starkel 13 Jan 2025, 09:10

Nb of possible nodes in a mysensors networks with domoticz My Project • 13 Jan 2025, 18:10 • GLAB 16 Feb 2025, 01:11

Wio-E5 (STM32 and SX1262) My Project • 31 Dec 2024, 17:52 • nagelc 25 Jan 2025, 20:21

A low cost energy meter My Project • 25 Jan 2024, 01:03 • OldSurferDude 12 Aug 2024, 06:03

0Online

11.5kUsers

11.1kTopics

112.8kPosts

Welcome
Announcements • 23 Mar 2014, 08:24 • hek 2 Apr 2014, 14:39

Water Meter or "How to get Home Assistant to send saved data to an Arduino"
My Project • 18 Oct 2024, 02:19 • OldSurferDude 18 Oct 2024, 02:19

Long time test done with soil sensor!
My Project • 7 Jan 2025, 09:13 • Nicklas Starkel 13 Jan 2025, 09:10

Nb of possible nodes in a mysensors networks with domoticz
My Project • 13 Jan 2025, 18:10 • GLAB 16 Feb 2025, 01:11

Wio-E5 (STM32 and SX1262)
My Project • 31 Dec 2024, 17:52 • nagelc 25 Jan 2025, 20:21

A low cost energy meter
My Project • 25 Jan 2024, 01:03 • OldSurferDude 12 Aug 2024, 06:03

0
Online

11.5k
Users

11.1k
Topics

112.8k
Posts