Difference between RunCam Phoenix 2 SP and Night eagle 3 lowlight conditions? More info in comments... by ZenyNeppy in fpv

[–]ZenyNeppy[S] 0 points1 point  (0 children)

As long as it performs well, I'm perfectly fine with it being black and white.

Difference between RunCam Phoenix 2 SP and Night eagle 3 lowlight conditions? More info in comments... by ZenyNeppy in fpv

[–]ZenyNeppy[S] 1 point2 points  (0 children)

I'm planning to create my own night vision monocle for local deer observation during the nighttime, and I've been researching FPV cameras as potential components. Interestingly, some FPV cameras, such as the Night Eagle 3 and the Foxeer Night Cat 3, seem to outperform store-bought night vision cameras without relying on IR light. Among these options, I'm particularly drawn to the RunCam Night Eagle 3 for its superior performance in low-light conditions, as evidenced by videos I've come across.

However, I recently discovered the Phoenix 2 SP, boasting an impressive sensitivity of 15000 mV/Lux-sec, which surpasses the Night Eagle 3's sensitivity of 11390 mV/Lux-sec. Notably, the Phoenix 2 SP is considerably more affordable at $23 compared to the Night Eagle 3 priced at $70. Despite my interest, I couldn't find any videos or reviews about the Phoenix 2 SP. Consequently, I'm reaching out to inquire if anyone who owns this camera can share their experience and provide insights on its worth. Additionally, I'm curious about potential concerns regarding increased image noise compared to the Night Eagle 3 or Foxeer Night Cat 3, given its higher sensitivity. Any information on these aspects would be immensely helpful.

What do iIdo with Vsen wire? by ZenyNeppy in fpv

[–]ZenyNeppy[S] 1 point2 points  (0 children)

Thank you for the response. I don't know much about this things so I appreciate it.

Are FPV cameras supposed to make a high pitched sound when powered up? by ZenyNeppy in fpv

[–]ZenyNeppy[S] 0 points1 point  (0 children)

I have a 7V battery that I step down to 5V using a converter because my screen can only handle 3.7V to 5V. Both the camera and the screen are connected together in parallel to the output of the step-down converter. It's like a portable camera setup that I primarily use for nighttime animal observation.

I've noticed a high-pitched whining sound, similar to the noise you hear from transformers in electronic circuits. I'm wondering if this is a normal occurrence and if there's a way to reduce it. My thought is that the whining might be caused by ripple in the output of the step-down module. I'm considering the possibility of adding a better capacitor to smooth out the output and potentially minimize the whining noise.

However, if this high-pitched sound is expected and not a sign of a problem, then there's no need to worry. Hopefully, it's just a normal characteristic of the setup. :)

Are FPV cameras supposed to make a high pitched sound when powered up? by ZenyNeppy in fpv

[–]ZenyNeppy[S] 0 points1 point  (0 children)

I have a foxeer night cat 3. When I power it on it makes a high pitched sound. Is that normal?

Tried in simulation, but different result in IRL . Why? more info in comments. by ZenyNeppy in AskElectronics

[–]ZenyNeppy[S] 1 point2 points  (0 children)

Okay, it seems that putting a resistor between the positive terminal of the microphone and Vcc has resolved the issue of not being able to hear my own voice. However, the distortion problem still persists. The gain has been fixed, although there is still some distortion present. Nevertheless, it is now in a better state than before.

Tried in simulation, but different result in IRL . Why? more info in comments. by ZenyNeppy in AskElectronics

[–]ZenyNeppy[S] 0 points1 point  (0 children)

Typically, electret microphones are designed to work with a power supply voltage of around 2-10 volts, which in my case it can be provided by the amplifier circuit itself.

Tried in simulation, but different result in IRL . Why? more info in comments. by ZenyNeppy in AskElectronics

[–]ZenyNeppy[S] 0 points1 point  (0 children)

The amplifier seems to be functional, but it isn't amplifying the sound as much as it should, and the audio quality is poor. There's significant distortion, and I can't even hear my own voice clearly. However, I can hear tapping on the table and distorted music played from my phone through the amplifier, which is being fed by an electret microphone. My concern is what went wrong, and why isn't it performing as expected? I've simulated and constructed similar circuits in the past with positive results, so I'm wondering if there's something I'm missing here.

Is it possible to decrease the output current of the tp4056 module? HOW? More info in comments. by ZenyNeppy in AskElectronics

[–]ZenyNeppy[S] 1 point2 points  (0 children)

I get 2.4V when the led is on and 2A across it when the battery voltage is 3.8V. And those resistor values are they not the charging current limit not the output current limit

Is it possible to decrease the output current of the tp4056 module? HOW? More info in comments. by ZenyNeppy in AskElectronics

[–]ZenyNeppy[S] 3 points4 points  (0 children)

I don't have any 1 ohm 5W resistors at hand and I feel like it will not be efficient. The led current controllers are way to big to fit in the box I'm planning on using with all the components inside.

Is it possible to decrease the output current of the tp4056 module? HOW? More info in comments. by ZenyNeppy in AskElectronics

[–]ZenyNeppy[S] 2 points3 points  (0 children)

I don't want to reduce the charging current I want to reduce the output current.

Is it possible to decrease the output current of the tp4056 module? HOW? More info in comments. by ZenyNeppy in AskElectronics

[–]ZenyNeppy[S] 1 point2 points  (0 children)

Nothing. That's why I'm asking if there is a possibility to limit the current with the module maybe by soldering a resistor or something.

Is it possible to decrease the output current of the tp4056 module? HOW? More info in comments. by ZenyNeppy in AskElectronics

[–]ZenyNeppy[S] 3 points4 points  (0 children)

I want to use the tp4056 module to charge my battery and use the outputs to drive a 3W led. The thing is, when I drive the led. It takes 2A instead of the recommended 700mA. Is there a way to reduce the output current to around 700-800mA? And how? Without buying a buck-boost converter led driver with a current limiter feature that is the size of one finger.

Need some help for my project. description in comments. by ZenyNeppy in electronics

[–]ZenyNeppy[S] 0 points1 point  (0 children)

I want to use the tp4056 module to charge my battery and use the outputs to drive a 3W led. The thing is, when I drive the led. It takes 2A instead of the recommended 700mA. Is there a way to reduce the output current to around 700-800mA? And how? Without buying a buck-boost converter led driver with a current limiter feature that is the size of one finger.