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u/Chemical_Wonder_6631

r/AskElectronics r/GPStracking r/PCB
▲ 1 r/GPStracking

Sinotrack ST901 battery drain

Hello everyone, i need some help with my st901 4g tracker. I have it installed and setup on a sym scooter but the tracking interval settings are really confusing. I have trying setting it via sms to 1 hour and via the app, with set position mode and set saving power location interval. From my understanding if i set it to a power saving feature and someone steals it i won't be able to track it unless somone turns the acc on and it works on live mode. But if i set it to update every 5,10 or even 60mins when parked it drains the battery overnight, it once dropped to 7v. Am i missing something? Any help appreciated

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u/Chemical_Wonder_6631 — 9 days ago
▲ 1 r/AskElectronics

Hello everyone, i just finished the schematic for my custom tpa3116 2.1 amplifier. I'm posting to get any recommendations and catch mistakes before i start laying out the components since this is my biggest project so far. My main concerns are:

  1. Have i implemented the mute correctly? I want a to have a mute button and i used dpst

  2. Do i need an ntc at VIN?

  3. Is the way i did master + sub volume correctly? I need a master volume that controls all channels + one for the sub only.

Any other tips are welcome!

Thanks in advance

u/Chemical_Wonder_6631 — 2 months ago
▲ 3 r/PCB

Hello everyone, i just finished the schematic for my custom tpa3116 2.1 amplifier. I'm posting to get any recommendations and catch mistakes before i start laying out the components since this is my biggest project so far. My main concerns are:

  1. Have i implemented the mute correctly? I want a to have a mute button and i used dpst

  2. Do i need an ntc at VIN?

  3. Is the way i did master + sub volume correctly? I need a master volume that controls all channels + one for the sub only.

Any other tips are welcome!

Thanks in advance

u/Chemical_Wonder_6631 — 2 months ago