Fingerprint Sensor AS608 - A Beginner's Guide
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →One can never have enough socks, or USB ports. Add some more USB capability to your Raspberry Pi Zero with the Zero4U!
This is a 4-port USB hub for Raspberry Pi Zero, and it can be mounted back-to-back onto a Pi Zero. The 4 pogo pins on the back will connect the PP1, PP6, PP22 and PP23 testing pads on your Raspberry Pi Zero – no soldering required!
This item can only work with the Zero W if a ferrite ring is installed!
The USB hub will take power directly from your Pi Zero, so you don’t need to power the USB hub separately. However you can use the JST XH2.54 connector on board as an alternative power input port. The blue onboard LED is the power indicator, and will light up when power is connected. Each USB port uses a dedicated white LED as a transaction indicator, and a dedicated electrolytic capacitor to help stabilize the output voltage.
If you use this USB hub with other types of computers, you can use a USB cable (not included) to connect the onboard mini-USB port to the up-stream USB port.
Kit includes:
Note: This version of Zero4U only works with the Raspberry Pi Zero v1.3 (with camera connector).
Note: As of 3/29/2017, this ships with a small Ferrite ring in each Zero4U package, in order to support the newly released Raspberry Pi Zero W. The user can put that Ferrite ring on the pogo pins to avoid the interference from the on-board antenna.
TECHNICAL DETAILS
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →Wire a joystick to your Arduino, read X/Y, then print UP / DOWN / LEFT / RIGHT to the serial monitor.
read tutorial →Bench-test a 43 A motor driver before wiring the full project. Catches weak power, mis-pinning, and dead boards before they cost you time.
read tutorial →Coming from UNO and the Pico won't show a COM port? Here's the BOOTSEL trick, the driver fix, and the first sketch that actually works.
read tutorial →Share what you built. Photos, BOM, what worked, what didn't.
view thread →Symptom + what you tried + clear photo = answers within hours.
view thread →Brownout reset when adding a sensor? Notes on supply decoupling and GPIO checks.
view thread →Upload failing on your first Uno? Driver, COM port, board match — checklist inside.
view thread →