Questions tagged [connect]

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AD844 TZ and offset null pin connection

I want to use AD844 op amp to amplify signals at about 11 MHz. I just want to build the following circuit configurations: inverting gain of 1, 10 and non-inverting gain of 1, 10 and 100. These ...
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How could I connect an LED to a USB Type C connector?

I’m trying to connect an LED to a USB connector, so when the cable connected, the LED lights up. I was planning to do this on a USB type C cable. How could I do this without ruining the cable ...
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Arlec grid connect bulb and power points DC convert smart WiFi hack

These devices works off 240V AC. I was looking to convert them to run off DC and keep the grid connect app function. https://www.bunnings.com.au/arlec-9w-950lm-4000k-grid-connect-bc-smart-...
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Help! Why don't my connections show up on my pcb gerber files? But they show up on the Eagle layout?

Below is a screenshot of my Eagle pcb layout. and below that is a screenshot of my gerber file extracted from pcbway.com As you can see none of the connections show up but they do show up if I take ...
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Is there anyway to get a more solid connection from pads to planes in Eagle pcb layout?

Below, in blue and white, is the suggested pcb layout from the data sheet: https://www.mouser.com/datasheet/2/468/RPX_1_0-1903909.pdf and here is my pcb layout from eagle as you can see in the data ...
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-3 votes
2 answers
233 views

Falstad - a bug with mosfets?

I have a schematic in Falstad. It is almost symmetrical (the mosfets are connected by drains and "SWAP D/S" is enable in the second mosfet to be able to connect both). And this symmetrical ...
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2 answers
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My daughter's science project is to charge AA batteries with a solar panel

We bought a 0.5 watt solar panel with 4.5 V, a 4 AA battery holder and a 15 ampere Schottky diode 45V , and 4 lithium ion rechargeable batteries. We connected the red positive solar wire to the diode. ...
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1 answer
42 views

Micro USB b connection detector

Is there a way to detect if there is a Micro USB B cable physically inserted into a micro USB B receptacle, even if it is just a cable (with nothing attached to it). in android device
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Connect LED-driver (BJT) in circuit

I need some help in this circuit! How can I connect LED-driver (BJT) in this circuit? Then what is the valus of RB and RC that meet the requirements, so that the LED driver works properly. ...
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66 views

How many WiFi networks can operate concurrently?

Very hard information to find since Google always falls down in how many devices can be connected simultaneously to a single one network. Is there a limit to how many different WiFi networks can work ...
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Connecting power supply outputs in parallel [duplicate]

I would like to know if it is safe to connect in parallel the outputs of a power supply like this, and in case it is feasable, how to proceed.
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1 answer
1k views

connecting single phase motor to UK mains AC

I have a single phase single volt (UK 220-240) 1Hp electric motor with two capacitors, start and run. As photographed. This is to run my Milling machine. I need to connect the motor, via ...
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connect pad inside component symbol

I'm trying to connect A4 to pin 5 in 6050 in the picture. When I click those with the net tool, it also connects A2, which is not what I need. If I use the delete tool and erase the junction, they ...
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147 views

How to connect a fast recovery diode with 3 pins?

I have a fast recovery diode, part number D30FD60K, I would like to know how I have to connect it. The diode will be used as the return path in parallel with a fuse. Like shown in the diagram. Pin 3 ...
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2 answers
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Arduino pin connection basic

In the Arduino Uno's basic manual, connections for fading led are given. They have connected led on breadboard. The positive of led is connected through a resistor to the pin no 9 (pwm) and negative ...
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EAGLE - how to make ground planes to connect to the smaller PADS

I cant fid how to configure the GND polygon to connect to smaller IC pads: EDIT Following the @Dave Tweed answer the result is exactly as I need:
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JDY-16 Bluetooth Rx/Tx Connection

How i can make jdy-16 to arduino rx/tx connection? http://prntscr.com/k4dmqg 01 pin > VCC 24 pin > GND 19 pin > TX 20 pin > RX But device doesn't answer AT COMMANDS! When i connect jdy-16 with ...
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1 vote
1 answer
301 views

Bluetooth LE losing connection

I'm developing a device that operates with Bluetooth Low Energy (BLE). It has a connection loss problem, where it connects and stays on for a while, but most of the time it connects and then ...
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Altium designer direct connect on high power components

I'm designing a board which I'll solder it by hand. In order to do soldering much easier I believe that many components need to be connected through relief connect to their adjacent polygon pour. ...
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