kent
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kent 18/06/2021
These are an incredible value. 96-98% efficiency means NO HEAT and NO WASTED POWER.. the days of the TO-220 1A regulator with heatsink and fan are over. It brings shame to what I used to think was an efficient power supply after matching transformer, rectifier, heat sink, and convection cooling. There are two; a 1.8A and a 3A and they are both terrific regulators - power supplies made simple! ** And just as a side note: they arrived faster than a similar order for FETs from Amazon!
20Pcs Mini DC Adjustable Power Supply Buck Module Step Down Module
US$9.99 US$20.00
5
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kent 28/10/2019
The documentation for these floating around the net is Chinese and standard translators have trouble with technical specifications so what has been done by hobbiests is only scraping the surface of the module's capabilities. I translated the entire technical reference and spent many days evaluating it's capabilities. The voice recognition has a very limited vocabulary and although they did provide custom vocabulary integration for bulk purchases; these are surplus modules no longer in production. Voices include Male, Female, and even Children with programmable tone and rate so they are quite flexable in that respect. The quality of the voice is very poor even with external bandpass filtering making it hard to understand unless you know what to listen for. My most fun project with these is "The Battling Bickersons Box" where I entered a whole bunch of insults into a list and alternated random picks using HIS/HER voices.
XFS5152CE Speech Synthesis Module TTS Voice Module Support Encode Decode
US$11.47 US$33.99
4
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kent 18/06/2021
These are an incredible value. 96-98% efficiency means NO HEAT and NO WASTED POWER.. the days of the TO-220 1A regulator with heatsink and fan are over. It brings shame to what I used to think was an efficient power supply after matching transformer, rectifier, heat sink, and convection cooling. There are two; a 1.8A and a 3A and they are both terrific regulators - power supplies made simple! ** And just as a side note: they arrived faster than a similar order for FETs from Amazon!
10pcs Mini MP1584EN DC-DC BUCK Adjustable Step Down Module 4.5V-28V Input 0.8V-20V Output
US$6.59 US$13.99
0
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kent 18/06/2021
Very sharp, perfect display for my Raspberry Pi projects. Includes everything you need to connect it and put it to use within minutes of getting it out of the box. Touch sensitivity is very good and precision is quite workable.
7 Inch Full View LCD IPS Touch Screen 1024*600 800*480 HD HDMI Display Monitor for Raspberry Pi
US$63.99
0
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kent 18/06/2021
I'm now using these exclusively for LED lighting. I've had a couple duds (rare) but have never had one fail once in service. Note: weatherproofing with liquid tape works excellent for outdoor lighting projects.
10pcs LD06AJSB DC 2.8-6V 30-1500mA Constant Current Converter Adjustable Control Module PWM Controller Board for 3V 3.3V 3.7V 4.5V 5V 6V LED Driver
US$22.99 US$27.99
0
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kent 15/01/2021
This is an updated version of the Quick 861DW with a touch-screen digital panel. Popped it out of the box and put it to use immediately. Nice temperature and air-flow control. Settings work same as 861DW with buttons replaced by touch controls. Sturdy build, looks like I can expect a few years service out of this.
BEST BST-863 1200W 220V/110V Intelligent LCD Touch Screen Heat Air SMD Rework Station
US$261.74 US$299.99
0
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SMD Music Lamp Circuit Kit DIY Electronic Production Training Parts
US$3.39 US$9.99

Q: Were can i find the PDF how to build it?

Asked by amigawolf on 2020-09-16 03:26:40

kent Mine came with a schematic and instructions in Chinese that Google translated.

2020-10-05 11:53:02 Helpful (1)
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kent 02/10/2020
All the parts are here, instructions included (gotta love translate.google.com), and it looks like a great little project. I have an arcade machine I built I thought I would try and retro-fit a TILT circuit.
Anti-theft Vibration Alarm Circuit Kkit DIY Production Electronic Training Welding Parts
US$5.99 US$7.99
0
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kent 02/10/2020
All parts are here and accounted for. Instructions included but few enough parts that wouldn't have mattered. Takes a while to get here but it seems if I order one or two projects a week there is always one arriving and I am never without a project to do.
SMD Music Lamp Circuit Kit DIY Electronic Production Training Parts
US$3.39 US$9.99
0
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kent 25/07/2020
32K of EEPROM data over a serial bus, in a single chip! These are the PU27-D versions of the chip that work with 2.7V to 5.5V so Arduino, ESP32, whatever you want to interface these to will be a snap. I'm testing them using an ESP32 (3.3v) and they are working fine. Jumpers are for 3x addressing, 1x WriteProtect so if one isn't enough, add up to 7 more. Work well for storing run-time data where other options might be an SD-card. Official LC Technology branding on these modules
10Pcs AT24C256 I2C Interface EEPROM Memory Module
US$14.99 US$17.99
0
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kent 27/11/2019
These boards are the best bang for the buck of micro-controllers with the only gotcha being that there are 38-pin and 36-pin versions with completely different pinouts. If you don't care it doesn't matter but if planning on building more of a designed project (count the pins before you order). Nice that the pins aren't mounted for projects where you only need a few connections to the board and can wire it directly.
ESP32 WiFi + bluetooth Development Board Ultra Low Power Consumption Dual Core ESP-32 ESP-32S Similar ESP8266 Geekcreit for Arduino - products that work with official Arduino boards
US$11.54 US$16.99
1
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kent 16/07/2020
These are very sharp and ground down to easily cut flat against the PC board. Written on side of handle: "MAX DIA <= 1.0mm COPPER WIRE". Maybe not Titanium but very well built, I will be buying more of these.
DANIU Electrical Cutting Plier Wire Cable Cutter Side Snips Flush Pliers Tool
US$9.99 US$12.99
0
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kent 09/07/2020
These are very solidly built and well insulated screw terminals with pin spacing of twice the standard 1/10" allowing connections of high voltage/current devices. Most readers will already be familiar with these connectors since the majority of application modules use these for connections.
100pcs 5mm KF-301 3 Pin PCB Mount Block Screw Terminal NF Connector
US$13.94 US$16.73
0
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kent 09/07/2020
These are very solidly built and well insulated screw terminals with pin spacing of twice the standard 1/10" allowing connections of high voltage/current devices. Most readers will already be familiar with these connectors since the majority of application modules use these for connections.
100pcs 2 Pin Plug-In Screw Terminal Block Connector 5.08mm Pitch
US$8.59 US$11.99
0
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kent 04/07/2020
Smaller thread than I was expecting but I was pleasantly surprised on the quality. Nice assortment of both spacer posts and mounting posts. Hardware smaller (matches thread), but fits nicely in tight spaces on small boards. Very strong, don't let the scaled down size fool you. One of the best deals in PCB mounting hardware on Banggood!, at a fraction I would pay at a regular supplier.
Suleve™ M2.5NH2 300Pcs Nylon Screw White/Black Hex Screw Nut PCB Standoff Spacer Assortment Kit
US$8.39 US$13.99
0
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kent 30/06/2020
Came in a big bag of unlabeled boards so it took a day to sort through and google what they were. If you are an Arduino fan and haven't yet tried some of the available modules this can save you some time and money. P.S. Banggood is getting back on track with delivery times, fast delivery.
45 IN 1/37 IN 1 Sensor Module Starter Kits Set For Arduino Raspberry Pi Education Bag Package
US$9.69 US$13.99
0
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kent 26/06/2020
Handy to have a prototype with built-in stereo volume and some supply filtering (a must have) but the 'USB' descriptor is totally misleading and seems to imply that its USB powered.. with NO USB CONNECTION. It can use 2.5V to 5V DC power but nothing USB about these units.
PAM8403 2 Channel USB Power Audio Amplifier Module Board 3Wx2 Volume Control
US$1.40 US$7.99
0
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kent 26/06/2020
What was delivered was 2 speakers clearly marked 2Watt that looked nothing like the picture (black cones). Very light weight, small magnets, low output, with very narrow bandwidth. Better speakers available for same price range, shop around.
1pc 40mm 4Ω 3W Full-range Audio Speaker Stereo Woofer Loudspeaker
US$11.99 US$17.99
0
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kent 26/06/2020
Looks like a very good quality module but unfortunately project on hold so I can't evaluate it's performance. Microphone, SD card reader,.. good all-around MP3 I/O encoding/decoding utility module. Working on FM radios interested in Internet Radio, and this module is a good interface to Internet Radio. Hope to get it on the bench soon.
VS1053 VS1053B MP3 Module Development Board UNO Board with SD Card Slot Ogg Real-time Recording Geekcreit for Arduino - products that work with official Arduino boards
US$9.99 US$21.99
0
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kent 26/06/2020
Feature (and component) packed circuit board can build a complete stereo FM radio in a very compact space.
TEA5767 FM Stereo Radio Module 76-108MHZ With Antenna
US$10.39 US$15.99
0
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