constantin
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Bakeey QS90 0.96inch OLED Heart Rate Blood Pressure Monitor Pedometer Message Show Smart Bracelet
US$8.97 US$49.99

Q: Does it vibrate?

Asked by constantin on 2021-06-16 12:26:58

BG214411383 sim

2021-06-18 01:18:16 Helpful (1)
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Bakeey M4 Max Color Screen Wristband IP67 Blood Pressure O2 Long Standby Fitness Smart Watch
US$15.99 US$22.99

Q: Can I set the alarm clock to wake me with a vibration?

Asked by constantin on 2020-04-23 01:44:24

dr4cul4 check user manual

2022-07-02 11:20:12 Helpful (0)
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Answers (3)
constantin 29/12/2020
This is the third T5 I've bought and I'll probably buy more. It is unbelievable how versatile this gadget is. I even popped a fuse on one of them because I'm a bad engineer and it was very easy to bridge it with a blob of solder. The board worked perfectly after.
LILYGO® TTGO T5 WiFi Wireless Module bluetooth Base ESP-32 ESP32 2.13 e-Paper Display Development Board
US$13.99 US$35.99
10
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LILYGO® TTGO T5 WiFi Wireless Module bluetooth Base ESP-32 ESP32 2.13 e-Paper Display Development Board
US$13.99 US$35.99

Q: Is there a maximum limit of writing on the display? how much is the estimated total duration of hours in optimal conditions? the total duration can decrease if the display is continuously refreshed every x sec?

Asked by BG561544350 on 2020-12-21 08:47:27

constantin I'vehad mine running 3 years 24-7 with a refresh every 60 seconds and there is no visible change in the quality. Just don't partially refresh more than 5 times between full refreshes. Partial refreshes WILL permanently burn in ghost images into the screen.

2021-10-17 12:42:51 Helpful (2)
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LILYGO® TTGO T-Watch-2020 ESP32 Main Chip 1.54 Inch Touch Display Programmable Wearable Environmental Interaction Watch
US$62.99 US$75.99

Q: What battery does it use?

Asked by constantin on 2020-05-11 01:10:34

Onychoid 350MAH lithium battery

2020-05-16 02:31:28 Helpful (1)
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Answers (2)
constantin 29/12/2020
Works great. I used it to upload a photo from my phone to my PC to write this review. It's super bright at night and it flickers in tune to music if you're using it for headphones. I haven't perceived any latency and the transfer speed is within bluetooth 5 spec.
USB bluetooth Adapter 5.0 Desktop Dongle Wireless WiFi Audio Music Receiver Transmitter bluetooth Receiver
US$9.69 US$9.99
3
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constantin Doesit work?

ttrigonis 27/10/2020
The Item got here in Athens today 27-10-2020 from 02-10-2020 CZ warehouse 1 week delivery.... From CZ warehouse no problem but for the Greek in Athens AirMail Center being from 15-10-2020 up to day which is at Home 27-10-2020 they have a big PROBLEM in Athens by local post office. By DHL the goods are here in no time But when the local Post Office is involved the time to get the goods here is very BAD. Bangood Thks
150W 7000Pa 28000rpm Portable Car Vacuum Cleaner Handheld Home Cleaner
US$25.11 US$32.99
0
Comments (1)
constantin 29/12/2020
Works amazing! Make sure you buy three batteries to have ~30 minutes of play time. The app works with my Samsung S4 and the video quality is perfect! It is obviously not 1080p or 4k, that would be stupid since the battery would drain very fast. But the 720p live stream is super fast with very little latency. I even tried it in Google Cardboard mode and flew around like a real FPV pilot. The drone itself is very stable. I've never flown before and I learned how to fly without headless mode in three days. I don't recommend ever using headless mode. The 360 button works ever time and impresses everyone :) And gesture recognition works too but it sometimes crashes the app. I've also crashed it dozens of times against my walls, ceiling and Christmas tree and it still works perfectly. The drone shuts off its motors when it senses a huge shock. I'm very glad I bought this tiny drone to learn how to fly.
LSRC LS-MIN Mini WiFi FPV with 4K/1080P HD Camera Altitude Hold Mode Foldable RC Drone Quadcopter RTF
US$34.05 US$40.99
6
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Basic 2.4G Wireless Gaming Mouse Dual Mode 2.4G Wireless + Type-C Wired Rechargeable 10000DPI Ergonomic Home Office Business Mouse for PC Laptop Computer
US$27.99

Q: What is the difference between the SOUND and the SILENT version?

Asked by constantin on 2021-08-11 03:23:35

Ada the click sounds noisy or quiet

2021-08-11 08:40:14 Helpful (1)
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Answers (1)

constantin Whydid you give 5 stars then?

BG138142236 26/11/2020
El cd está en blanco, no tiene ninguna información para instalar el programa. También, el dispositivo USB está roto.
STARTRC 8-in-1 RC Flight Simulator Wireless Simulator for Flysky i6x Radiolink AT9s AT10 RC Toys For Kids
US$12.99 US$16.79
5
Comments (2)
LILYGO® TTGO T5 WiFi Wireless Module bluetooth Base ESP-32 ESP32 2.13 e-Paper Display Development Board
US$13.99 US$35.99

Q: What target board should we use in Arduino?

Asked by BG240155443 on 2021-03-24 10:07:17

constantin ESP32Dev Module

2021-03-30 08:41:09 Helpful (1)
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Answers (1)
LSRC LS-MIN Mini WiFi FPV with 4K/1080P HD Camera Altitude Hold Mode Foldable RC Drone Quadcopter RTF
US$34.05 US$40.99

Q: how do you connect the controler to the drone

Asked by BG143938545 on 2021-03-04 11:08:08

constantin Turn on the drone, then turn on the controller. Then move both sticks of the controller down and then move both sticks up. You should hear a beep from the drone. If not, move both sticks down and then up again.

2021-03-04 02:50:41 Helpful (1)
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Answers (4)
DANIU Mini Alligator Clip Test Lead Cable for Digital Multimeters
US$5.99 US$7.99

Q: neither black or red wire has a connection through, banana and alligator ends are completely isolated from each other. finally got around to test why it didnt work as expected - dismissed before, just thinking my multimeter was acting up. this is obviously potentially lethally dangerous. review time passed, so leaving this as a question.

Asked by Christian on 2021-02-08 11:18:55

constantin Yeahsame here. Mine actually broke off inside my multimeter when I tried to pull them out. To anyone reading this, never ever use cheap leads for anything more than 5V, 1Amp or dangerous things can happen.

2021-02-26 01:06:58 Helpful (1)
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Answers (1)
constantin 12/03/2020
Perfect little board! Over the past few months I've tested every pin and feature and it all works. The partial refresh is nice, but if you use it more than a dozen times in a row without a full refresh, it can burn in a ghost image on the screen.
LILYGO® TTGO T5 WiFi Wireless Module bluetooth Base ESP-32 ESP32 2.13 e-Paper Display Development Board
US$13.99 US$35.99
8
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Comments (0)
constantin 29/12/2020
Works fine. Just make sure you coat it with a little flux before use. The braid is just pure copper. The packaging is very nice and reusable; the braid won't unravel, rust or fall off.
3mm Desoldering Braid Solder Remover Wick Wire
US$3.14 US$8.99
2
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constantin 12/03/2020
The probes look nice and the alligators grip very well. However, the negative terminal male pin broke inside my multimeter on the first use. They also have a resistance of 1.4 ohms, which seems quite high for test leads.
DANIU Mini Alligator Clip Test Lead Cable for Digital Multimeters
US$5.99 US$7.99
2
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Comments (1)
constantin 29/12/2020
Incredibly useful little gadget! I use it to see if I've been scammed on battery capacities and to test if my devices are charging properly. Using it I also discovered that lots of USB wall chargers lie about the amps they output on their packaging. You can also just plug it into a power-bank to see if it has any juice left.
DANIU Digital 10 in 1 Colorful LCD Display USB Tester Voltage Current Tester USB Charger Tester Power Meter
US$13.99 US$16.99
1
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constantin 29/12/2020
It works. I download Youtube videos on my phone then I stick them onto my TV using this adapter and a USB stick. You can even use it to charge a pair of headphones from your phone or even charge someone else's phone using your phone and blow their minds!
Earldom Micro USB OTG Adapter for Tablet Cell Phone
US$5.75 US$9.99
1
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constantin 29/12/2020
My precious! I'll finally never run out of transistors. I used to take apart various trash electronics to salvage transistors. These are all brand new and smell really fresh.
200Pcs 10Values 20 Each Transistors Kit BC337 BC327 2N2222 2N2907 2N3904 2N3906 S8050 S8550 A1015 C1815 Transistor
US$5.66 US$10.99
1
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