A selection of eBay items from China.
Check out what I found. 1Pcs Electronic Lucky Rotary Suite DIY Kits Production Parts And Components New http://www.ebay.co.uk/itm/-/271661475550?roken=cUgayN via @eBay_UK
Check out what I found. New Good Quality Electronic Dice Suite/Electronic DIY Kits Good Quality http://www.ebay.co.uk/itm/-/271602686954?roken=cUgayN via @eBay_UK
Check out what I found. New CCPM Steering Gear Tester Servo Motor Tester Electrically Controlled Tester http://www.ebay.co.uk/itm/-/271659310106?roken=cUgayN via @eBay_UK
Check out what I found. 4X Micro 9g RC Servo for Trex 450 Futaba Hitec HS-55 Align GWS JR Walkera T5 http://www.ebay.co.uk/itm/-/331006376340?roken=cUgayN via @eBay_UK
Check out what I found. DB9 D SUB Male Adapter Plate 9 Pin Terminal Breakout Board UART RS232 KF396232 http://www.ebay.co.uk/itm/-/281464188757?roken=cUgayN via @eBay_UK
Check out what I found. 1Pcs USB Charger DC-DC Step-down Converter Voltmeter Module DC 4.5-40V to 5V 2A http://www.ebay.co.uk/itm/-/281395320002?roken=cUgayN via @eBay_UK
Check out what I found. New 5V 30A 1-Channel Relay Module+Optocoupler H/L Level Triger for Arduino Mega http://www.ebay.co.uk/itm/-/281428765326?roken=cUgayN via @eBay_UK
Check out what I found. 1Pcs 2.4G 2.5dBI Wireless RP-SMA Antenna with Extension Cord for NRF24L01 CC2500 http://www.ebay.co.uk/itm/-/271648293939?roken=cUgayN via @eBay_UK
Check out what I found. 1Pcs Electronic Lucky Rotary Suite DIY Kits Production Parts And Components New http://www.ebay.co.uk/itm/-/271661475550?roken=cUgayN via @eBay_UK
Check out what I found. New Good Quality Electronic Dice Suite/Electronic DIY Kits Good Quality http://www.ebay.co.uk/itm/-/271602686954?roken=cUgayN via @eBay_UK
Check out what I found. New CCPM Steering Gear Tester Servo Motor Tester Electrically Controlled Tester http://www.ebay.co.uk/itm/-/271659310106?roken=cUgayN via @eBay_UK
Check out what I found. 4X Micro 9g RC Servo for Trex 450 Futaba Hitec HS-55 Align GWS JR Walkera T5 http://www.ebay.co.uk/itm/-/331006376340?roken=cUgayN via @eBay_UK
Check out what I found. DB9 D SUB Male Adapter Plate 9 Pin Terminal Breakout Board UART RS232 KF396232 http://www.ebay.co.uk/itm/-/281464188757?roken=cUgayN via @eBay_UK
Check out what I found. 1Pcs USB Charger DC-DC Step-down Converter Voltmeter Module DC 4.5-40V to 5V 2A http://www.ebay.co.uk/itm/-/281395320002?roken=cUgayN via @eBay_UK
Check out what I found. New 5V 30A 1-Channel Relay Module+Optocoupler H/L Level Triger for Arduino Mega http://www.ebay.co.uk/itm/-/281428765326?roken=cUgayN via @eBay_UK
Check out what I found. 1Pcs 2.4G 2.5dBI Wireless RP-SMA Antenna with Extension Cord for NRF24L01 CC2500 http://www.ebay.co.uk/itm/-/271648293939?roken=cUgayN via @eBay_UK
I am on a Julian Binge. China stuff is so fun. ALICE!! (ET AL).
I made a servo tester with a 555ic.
Julian i had been playing with these light sequencers years ago.
Have a look at the online seller Hobby King.
They are mainly for radio control guys but they carry a plethora of electronic components mainly connectors their gold plated banana plugs/sockets are very nice, they do a very nice servo tester in an aluminium case.
I used a version of a light sequencer as part of my solar system on my caravan.
4 solar panels with their own truck battery.
I used the sequencer to operate auto relays feeding into a large cap.
From here the 12v DC was fed into an inverter. All 4 batteries feed the control circuit via diodes in case of a battery failure.
I leave my caravan unattended for weeks at a time, running a fridge.
This way if one leg of the system fails like a bad battery or solar charger, 3/4 of the system still works.
I try to have each battery feed for about 5min.
Works very well as the fridge is not running all the time.
That reminded me of a matchbook down to the T & dot the I-i. LOL.
hey! its is 1509 NOT 1309
servo tester its fun i got 2 only one work of them
cheesus. 30A at 240 volts. More than enough to blow the mains fuse here xD
Julian Ilett Hi Julian, here I found the instructions of the usb buck converter, and it is included also the function of voltmeter calibration.
voltmeter range:. DC4.5 ~ 40V
Input voltage: DC 4.5~40V (please input voltage dc 6.5-40V , then can get a 5.0V stabilize output)
Output voltage current: 5V/2A
one button "Output Enable" switch USB output, one button "Low Power" turn off the voltmeter display
Voltmeter display can be calibrated
with reverse polarity protection, with over current, over temperature protection
with USB power indicator
with terminal for easy access lines
high-efficiency, low ripple
Module dimensions: 58mm * 21mm * 10mm (L*W*H)
Net weight: 13g
Voltmeter calibration method:
1, when the voltage meter display, press "Output Enable" button 2 seconds then release, voltmeter flashes.
2,Touch the "Output Enable" button, the voltage increases one unit, touch the "Low Power" button, reduce one voltage reduction unit(one unit is less than 0.1V )
3, After the voltage adjustment is completed, please press the "Output Enable" button for 2 seconds then release, exit voltage calibration mode. if power off, parameter setting will automatically save.
Data pins:
this module defaults to D+,D- shorted, compatible with most of the cell phone charging, if need to install identification resistor, such as IPhone please cut off the red line position
I really love your videos and I hope this will be useful to you and all people who own one of this usb buck converter!
Kind regards.
think it said xl1509 not xl1309
This man is almost buying the same things I buy from china.
Hey Julian, if you used the RS232 connectors as female only, you could use the cable itself to connect the electric bike to the balance lead since the cables are male on both ends. The balance lead would just connect to the second female connector.
This would also allow you to put everything in a project box rather than just open.