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 →The ESP-WROOM-32 Development Board with 18650 Battery Holder is a WiFi and Bluetooth board for portable IoT and wireless projects. It combines an ESP32 module with an onboard 18650 lithium battery holder, making it useful for battery-powered builds without needing a separate power bank.
This board supports 2.4GHz WiFi and Bluetooth v4.2, including BLE. It also has 4MB SPI flash, full ESP32 pin breakout, and a power switch for easy control.
The built-in charging circuit supports 0.5A charging current and 1A output. It also includes charge indicator LEDs, overcharge protection, and over-discharge protection for safer battery use.
Features:
- ESP-WROOM-32 / ESP-32S based board
- Built-in WiFi and Bluetooth support
- Bluetooth v4.2 BR/EDR and BLE
- 2.4GHz WiFi, 802.11 b/g/n
- Integrated 4MB SPI flash
- Onboard 18650 lithium battery holder
- Built-in 18650 charging circuit
- 0.5A charging current
- 1A output
- Charge indicator LED
- Power ON/OFF switch
- Overcharge and over-discharge protection
- Full ESP32 pins breakout
- Supports AP, STA, and AP+STA modes
- Good for portable IoT, sensors, and wireless control projects
FAQ
Will this ship from Manila?
Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.
Do you ship nationwide?
Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.
Can I get this on a school PO or class order?
Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.
Is this compatible with Arduino, ESP32, or Raspberry Pi?
Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.
What's your return policy?
7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.
Do you offer technical support?
Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.
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.
Customers also bought
Build with this board
Thumb Joystick - A Beginner's Guide
Wire a joystick to your Arduino, read X/Y, then print UP / DOWN / LEFT / RIGHT to the serial monitor.
read tutorial →Motor Drive (BTS7960 43A) - A Beginner's Guide
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 →Raspberry Pi Pico (RP2040) - A Beginner's Guide
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 →Notes from the bench
Ask the community
Project Showcase — show what you built
Share what you built. Photos, BOM, what worked, what didn't.
view thread →How to ask a good question (and actually get answers)
Symptom + what you tried + clear photo = answers within hours.
view thread →ESP32 brownout when wiring a sensor — fixes that worked
Brownout reset when adding a sensor? Notes on supply decoupling and GPIO checks.
view thread →First Arduino — sketch upload error, what to try?
Upload failing on your first Uno? Driver, COM port, board match — checklist inside.
view thread →