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Hi all.
I've been struggling with my Photodiode Transimpedance Amplifier for some time now and was hoping some of you could help me make this a bit more clear.
So far I've tried to measure the output voltage in different light conditions, which gives a reasonable output. Using the -Id * Rf =...
Yeah sorry for the mistype. Meant Drain and not collector. You can find a schematic below. The schematic is incomplete and only meant as a sketch of the overall schematic. If it's still too unclear, let me know and I try to redraw it :)
So each pair of RBG LED is connected to the same MOSFET...
So I've tried to use a similar transistor as the one you replied with. I found out that my load resistor was causing the heat problem. My attempt to a solution is:
So I have 2 RBG LED's, where the first MOSFET controls the ON/OFF state and the second three RBG control each of the R, B and G...
THanks for the answer.
I happened to come across a logic level MOSFET K4033, which has VGC of only 4V. However, I'm still struggling getting enough through the transistor to drive the leds proberbly.
At the moment I'm having a 10k Resistor from the power source to the Collector. I'm aware it...
Hi all.
I'm currently trying to construct a board, where I can wirelessly control an LED Strip using my phone's Bluetooth.
I'm using an atmel 328PU microcontroller for the main control of the system.
What I'm trying to achieve, is to have up to 5 strips attached to the board. Each has to be...
Hi all.
I'm trying it develop a simple low pass filter for an audio system. It consists of a simple RC filter.
Cutoff frequency at 6 KHz, with R = 920 ohm and C = 27 nF.
The problem is, that the output gain is so low, compared to the input gain. If I try to disconnect the resistor, the output...
Been trying to do what you said, array[number_0]++, but it doesn't increment the array by one, but the binary value. So you can imagine, that it's what you get on the display, is just the leds incrementing by 1 each time it's pressed. What could be causing this? And thanks for the answer by the...
Hi there.
I'm trying to drive 2 7 segment displays using a pic16f887, where the segments are setup as multiplexed. What I'm trying to achieve is, that when you click one button, the number on the display increases and when you click another, it decreases. I've been trying to make this work in...
Thanks for the answer :)
What I want is to make the counter increase by two, as each pulse arrives.
And about the two clocks. Again I'm not that much into this yet, so I was thinking that when you had two clocks, they would be independent of each other in a way, which allowed you to control...
So I'm currently trying to build a circuit, where you basicly have a counter which counts up or down and shows it on a 7 segment display.
Quite simple so far.
It has to be able to count from the range 0-999, but again that is just 3 counters, with following 3 decoders. Anyway my questions are...
Building a H-Bridge using PWM from a PIC16F887
Hi Guys.
I'm currently working on a school project, where we are trying to build a Line Following Robot. So far I'm able to control duty cycle of the PWM signal, with the use of 3 different sensors. So far so good. The last thing I'm missing, is...
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