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💬 Audio Amplifier Circuit on PCB Using LM386

openhardware.io 28 Jul 2017, 10:12 last edited by openhardware.io 28 Jul 2017, 10:21

https://www.openhardware.io/view/448/Audio-Amplifier-Circuit-on-PCB-Using-LM386
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9 Sept 2017, 06:04

@NeverDie Perhaps but the design is a bit too simple and unoriginal. I'd have to clean up the files a bit and I haven't touched Eagle since I made this board several years ago.
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10 Jan 2021, 11:51

@NeverDie Thx for appreciating the work done. There will also be an open source part in the future. When and how extensive the open source part will be, remains to be seen. The release of certain information (block diagram, ..., in this post) is related to those open source parts. There are some OBD solutions, however most of them (in my experience) give back low frequency data put by the car manufacturer on the OBD-bus (CAN, ...). Therefore transients evolving directly from the battery could only be recorded if the manufacturer sends those data accordingly on the bus. Due to the small bandwidth(also because of other car data that have to be sent, ...), such battery data are sent more often once per second or less. Fast battery events (i.e. cranking events, ...) are therefore imperceptible. Unless the manufacturer processes the fast events and then sends them (once per second or less), which is very unlikely if the manufacturer does not market this feature itself. Third parties devices for high frequency sensing costs several hundreds dollars. In my experience, important battery states (especially the fast ones) are recorded by measuring and processing corresponding data directly on the battery. I agree with you about the limits related to the communication over Bluetooth. But i think Bluetooth 5.0 will improve a lot. However, WiFi will always remain an important option due to the high data throughput. The combination of both (BLE & WiFi), especially with regard to energy consumption, will gain in importance.
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@Ozal I had similar board which **pcbbasket made it for me, the cost was a bit higher, but they made exactly as I wanted. So I recommend them www.pcbbasket.com **
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@sundberg84 I was able to do a photo, so the dallas temp, and le33 "mask" is on the opposite side, I think this is the problem. (in your example pictures they are on the good side) No worries, I use currently the newbie pcbs for light switching,
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@ferpando @rosskinard Has anyone made any headway on this project?
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@mickecarlsson , thanks for your answer and help I ordered the NRF24 version So , will cancel it and order RFM69 version Cheers, JC
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@JohanH - thanks for your reply! I also hope and think people who build commercial products have knowledge of this But as a hobbyist, there are two ways to go - either you dont have to care or go bare minimum, if something happens its your own fault, or you can try to make is as safe as possible. My idea was never to make this thread a information source for a commercial product. I wanted to try to make my own products as safe as possible since I have children around. With that in mind, i want to be on the safe side of things so some things i use from here might be exaggerated. But my PCB (HLK-PM01 breakout) is working great, and I feel safe. I have had it outdoors (under roof covered in IP5* box, -20 to +30 aprox) and its been working for me for a couple of years now. Better than I had before, when i just stripped an old fake samsung charger. /Andreas

💬 Audio Amplifier Circuit on PCB Using LM386

Suggested Topics

Step-up / Boost regulator PCBs
Hardware • battery pcb diy boost eagle • 3 Feb 2015, 19:27 • bjornhallberg 9 Sept 2017, 06:04

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Hardware • pcb pcb manufacturi • 9 Mar 2015, 20:11 • Ozal 11 Mar 2015, 18:55

Upverter
Hardware • pcb schematic upverter • 16 Sept 2014, 18:13 • Yveaux 16 Sept 2014, 18:13

💬 In Wall AC/DC Pcb for MySensors
OpenHardware.io • pcb acdc inwall mysx1.4 • 11 Jan 2016, 17:56 • openhardware.io 11 Feb 2019, 15:25

PCB design and production
Hardware • pcb production design • 9 Jul 2014, 23:22 • jendrush 16 Jan 2015, 23:44

💬 Easy/Newbie PCB for MySensors
OpenHardware.io • mysensors battery pcb mysx newbie easy • 7 Jan 2016, 22:06 • openhardware.io 23 Oct 2022, 10:54

Clearance, creepage and other safety aspects in "MySensors" PCBs.
Hardware • pcb acdc ac power creepage clearance • 27 Jun 2016, 18:04 • sundberg84 25 Jan 2021, 09:08

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Online

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Posts

💬 Audio Amplifier Circuit on PCB Using LM386

Suggested Topics

Step-up / Boost regulator PCBs Hardware • battery pcb diy boost eagle • 3 Feb 2015, 19:27 • bjornhallberg 9 Sept 2017, 06:04

Design a pcb that has 6 layers Hardware • pcb pcb manufacturi • 9 Mar 2015, 20:11 • Ozal 11 Mar 2015, 18:55

Upverter Hardware • pcb schematic upverter • 16 Sept 2014, 18:13 • Yveaux 16 Sept 2014, 18:13

💬 In Wall AC/DC Pcb for MySensors OpenHardware.io • pcb acdc inwall mysx1.4 • 11 Jan 2016, 17:56 • openhardware.io 11 Feb 2019, 15:25

PCB design and production Hardware • pcb production design • 9 Jul 2014, 23:22 • jendrush 16 Jan 2015, 23:44

💬 Easy/Newbie PCB for MySensors OpenHardware.io • mysensors battery pcb mysx newbie easy • 7 Jan 2016, 22:06 • openhardware.io 23 Oct 2022, 10:54

Clearance, creepage and other safety aspects in "MySensors" PCBs. Hardware • pcb acdc ac power creepage clearance • 27 Jun 2016, 18:04 • sundberg84 25 Jan 2021, 09:08

2Online

11.5kUsers

11.1kTopics

112.8kPosts

Step-up / Boost regulator PCBs
Hardware • battery pcb diy boost eagle • 3 Feb 2015, 19:27 • bjornhallberg 9 Sept 2017, 06:04

Design a pcb that has 6 layers
Hardware • pcb pcb manufacturi • 9 Mar 2015, 20:11 • Ozal 11 Mar 2015, 18:55

Upverter
Hardware • pcb schematic upverter • 16 Sept 2014, 18:13 • Yveaux 16 Sept 2014, 18:13

💬 In Wall AC/DC Pcb for MySensors
OpenHardware.io • pcb acdc inwall mysx1.4 • 11 Jan 2016, 17:56 • openhardware.io 11 Feb 2019, 15:25

PCB design and production
Hardware • pcb production design • 9 Jul 2014, 23:22 • jendrush 16 Jan 2015, 23:44

💬 Easy/Newbie PCB for MySensors
OpenHardware.io • mysensors battery pcb mysx newbie easy • 7 Jan 2016, 22:06 • openhardware.io 23 Oct 2022, 10:54

Clearance, creepage and other safety aspects in "MySensors" PCBs.
Hardware • pcb acdc ac power creepage clearance • 27 Jun 2016, 18:04 • sundberg84 25 Jan 2021, 09:08

2
Online

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Posts