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
Interface-board-for-remote-control
My Project • 3 days ago • OldSurferDude 3 days ago

1

0
Votes

1
Posts

5
Views

No one has replied
Radar motion sensor
My Project • 5 days ago • suresh sharma 5 days ago

1

0
Votes

1
Posts

6
Views

No one has replied
Simulate Online-Recreating 'Flappy Bird' with Arduino Nano
My Project • 15 Jan 2025, 09:13 • Skylar Jones 15 Jan 2025, 09:13

1

0
Votes

1
Posts

17
Views

No one has replied
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

Interface-board-for-remote-control
My Project • 3 days ago • OldSurferDude 3 days ago

Radar motion sensor
My Project • 5 days ago • suresh sharma 5 days ago

Simulate Online-Recreating 'Flappy Bird' with Arduino Nano
My Project • 15 Jan 2025, 09:13 • Skylar Jones 15 Jan 2025, 09:13

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

Interface-board-for-remote-control My Project • 3 days ago • OldSurferDude 3 days ago

Radar motion sensor My Project • 5 days ago • suresh sharma 5 days ago

Simulate Online-Recreating 'Flappy Bird' with Arduino Nano My Project • 15 Jan 2025, 09:13 • Skylar Jones 15 Jan 2025, 09:13

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

Interface-board-for-remote-control
My Project • 3 days ago • OldSurferDude 3 days ago

Radar motion sensor
My Project • 5 days ago • suresh sharma 5 days ago

Simulate Online-Recreating 'Flappy Bird' with Arduino Nano
My Project • 15 Jan 2025, 09:13 • Skylar Jones 15 Jan 2025, 09:13

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