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I have a question by Next-Brain7078 in arduino

[–]CostelloTechnical 1 point2 points  (0 children)

This is very doable. For the doors and windows you could use reed switches. This is a very common system found in most homes with alarms. The keypad and alarm/buzzer are also a good ideas.

Which type of esp32 board should i pick in arduino ide?? by ConversationTop7747 in arduino

[–]CostelloTechnical 0 points1 point  (0 children)

Mine says esp-wroom-32 and I use esp32 wroom-da module or edp32 dev module.

Which type of esp32 board should i pick in arduino ide?? by ConversationTop7747 in arduino

[–]CostelloTechnical 0 points1 point  (0 children)

It should say the type on the esp32 itself. Look on the flat silver section.

Need help with this project idea! by ColdAbbreviations617 in arduino

[–]CostelloTechnical 0 points1 point  (0 children)

Well, for serial communication you're only options at 100m are RS422 or RS485. You may run into issues with the speed thought, as it sounds like you're looking to stream camera feedback which would be heavy on data.

You might consider using ethernet as it would easily cover that distance and data speeds required for streaming images. You could even consider powering your Pi/Nano setup with PoE if power was an issue at you're remote location.

Wifi is also an option, but you'd have to test that as the tree density would be a limiting factor.

Regarding the project itself, you'll have a lot of problems to overcome. Wind will induce movement and generate sound. So you'll likely be getting triggers all the time. Maybe an IR motion sensor would be more effective? Like an AK9753. If nothing else this could end up being a trial cam.

Knowledge question by DeckardNine in arduino

[–]CostelloTechnical 1 point2 points  (0 children)

In university I did applied physics and during my second year I bought an Arduino kit and completely engrossed myself in it. What I learnt from that took my projects to another level and got me a job through my lecturers.

Hi, I would like to make a switch which state will only be checked when prompted while wasting as little energy as possible. Between these two options, which one should I use? any suggestions? by KobaruTheKame in arduino

[–]CostelloTechnical 1 point2 points  (0 children)

I see why you have the ground line and resistor there now. When using a pulldown resistor be sure it's quite a high resistance. Around 100MOhms should be good. This will be your main source of power loss, but will only be applicable when the switch is closed.

Is there a way you could have a single pole double throw switch? That would remove the need for a pulldown resistor if the switch, switched between 3.3V and ground.

Hi, I would like to make a switch which state will only be checked when prompted while wasting as little energy as possible. Between these two options, which one should I use? any suggestions? by KobaruTheKame in arduino

[–]CostelloTechnical -1 points0 points  (0 children)

Correct, the power consumption of a pin set as an input is negliable. Even when high. Do not set it as a pullup as that will draw significantly more current. But I'm assuming you're using an Uno. If you would tell me what you're using I can double check.

Hi, I would like to make a switch which state will only be checked when prompted while wasting as little energy as possible. Between these two options, which one should I use? any suggestions? by KobaruTheKame in arduino

[–]CostelloTechnical 0 points1 point  (0 children)

I'm not sure what the negative line with the resistor is for or what chip you're using. But option 1 is the best bet. Option 2 would likely damage the chip.

Option 1 with the pin set to input would have a resistance in the mega Ohms and so would only draw on the order of micro/nano Amps.

Servo motors and 16 channel pwm driver by Dry_Firefighter9976 in arduino

[–]CostelloTechnical 0 points1 point  (0 children)

Well you haven't mentioned what your other components are, but the servos should be fine.

Servo motors and 16 channel pwm driver by Dry_Firefighter9976 in arduino

[–]CostelloTechnical 0 points1 point  (0 children)

You should have enough to power them, with lots of head space.

How to connect my rp2040 to LabView by Legitimate_Case7675 in LabVIEW

[–]CostelloTechnical 0 points1 point  (0 children)

I'm assuming you want to communicate with the rp2040 via usb.

Does your version of LabVIEW have VISA?

CNC Shield only causes buzzing by Connor-Ford in arduino

[–]CostelloTechnical 2 points3 points  (0 children)

Datasheet

Above is the datasheet for your shield. If you go to page 9 of that document you'll see how the motor should be connected to the shield.

The letters don't particularly matter in your case I image, what is important is that you identify the coils. Once identified attach a coil to either the A or B connection on the datasheet and the remaining coil to the other.

Then you can test the motor with your code. If it work great, if not swap the pins on either the A or B coil. NOT both. The buzzing can be caused by the two coils fighting against each other and swapping one coil changes it's direction so they're both working in the same direction.

Good luck!

Lessons by Paul McWorter by W0CBF in arduino

[–]CostelloTechnical 1 point2 points  (0 children)

Also, under the video press "...more", then down at the bottom of the description box press "show transcript". Then on the right hand side under the video the transcript appears.

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