DrMark666
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HLK-LD2410B Human Presence Radar Module Sensor Heartbeat Detection Smart Sensor Kit
HLK-LD2410B Human Presence Radar Module Sensor Heartbeat Detection Smart Sensor Kit
US$7.99 US$12.43

Q: Does the larger board do anything other than host the sensor and link to a proprietary Andriod app? I ask because the bluetooth range and human detection range appear to be similar, so it's not adding a great deal!

Asked by DrMark666 on 2024-04-14 05:54:39

Apivorous sorry not sure for that

2024-04-16 21:19:21 Helpful (0)
Answers (1)
Upgraded 3018 Pro CNC Router Offline Engraver DIY 3Axis GRBL Engraving Machine Woodworking Router
Upgraded 3018 Pro CNC Router Offline Engraver DIY 3Axis GRBL Engraving Machine Woodworking Router
US$299.00 US$499.00

Q: Nice solid build, I just completed assembly -

Asked by DrMark666 on 2022-03-09 06:38:17
Answers (0)
2000W ZVS Induction Heating Module Board Flyback Driver Heater Good Heat Dissipation With Coil Pump Power Adapter Kit
2000W ZVS Induction Heating Module Board Flyback Driver Heater Good Heat Dissipation With Coil Pump Power Adapter Kit
US$99.99 US$119.99

Q: Looks like a nice product. There are 4 connections under the LCD; ' 0 1 -' markings. What are they, please? The important ones are clear, these seem to be an extra!

Asked by DrMark666 on 2021-01-19 09:19:39

Astacology Then ignore them

2021-02-06 00:28:18 Helpful (0)
Answers (1)
5Pcs USB Humidifier Atomization Driver Board PCB Circuit Board 5V Spray Incubation
5Pcs USB Humidifier Atomization Driver Board PCB Circuit Board 5V Spray Incubation
US$8.99 US$17.99

Q: What's the paper tube for?

Asked by DrMark666 on 2020-11-04 08:01:01

Rolembeek Apparently the white cylinder (approx. 100x8 mm) can be used as a "wick" to guide the water to the underside of the crystal. So, you can put the tube vertically in a little water and the cry... See More

2020-11-20 16:41:44 Helpful (1)
Answers (2)

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