Soldering Iron Cleaner with Brass Ball Holder

This fingerprint scanner (as608-optical reader) is ideal for Arduino or Raspberry thanks to its small size and low power consumption. It has a simple interface, high reliability, good adaptability of wet and dry fingers, fast recognition speed and also in fast fingerprint search. Storage capacity of up to 120 fingerprints in its internal FLASH memory.

- The DHT22 humidity sensor is presented in a plastic body ideal for mounting on a panel or similar. It uses a capacitive sensor that returns a digital signal with the measurement - This sensor, unlike DHT11, is capable of measuring negative temperature values ​​and measures tenths of a degree
Characteristic:
- Operating voltage: 3 to 5.5 VDC - Humidity measurement range: 0-100% ± 2% accuracy
- Temperature measurement range: -40ºC to 80ºC ± 0.5º accuracy
- Maximum sampling rate: 2 seconds
Useful links for Arduino / Raspberry programming and projects with Arduino / Raspberry boards:
Write texts on the OLED 0.96 '' screen
- Read the measurements of the temperature / humidity sensor DHT22 / AM2302 on a 0.96 '' OLED screen
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High grade in the absorption of tin for professionals.
Copper mesh roll for desoldering electronic components.
Desoldering Wire 2mm features:
- Material: Copper
- Length: 1.5m
- Width: 2mm

TDA2030A 1X18W Audio Amplifier features:
- Chip: TDA2030A
- Power supply: DC 6V ~ 12V
- Channel type: Single channel - Output power: 1 x 18 W
- Output output: 4 ~ 8 Ohm
- Mono mode
- Size (LxWxH): 31.6 x 23.5 mm

Shield Li-Po Battery for WeMos D1 Mini ESP826 features:
Connect the lithium battery to this shield to supply power for the entire D1 mini system.
When the battery is depleted, it is not necessary disconnect the battery, just use the usb port to charge directly. - Charging voltage: max: 10V, recommend: 5V
- Charging current: max: 1A
- Voltage lithium battery: 3.3-4.2V
- Boost power supply: 5V (max: 1 A)
- LED color: red for charging, green for fully charged
- Ports:
* Micro USB - Charging port (normal 5V)
* Connect to the lithium battery (normal 3.3-4.2V)
* J1 - setting the maximum charging current, 0.5 A or 1A

It is used to pass the current, power electrical and electronic circuits, fans, motors, among others. Large Black Crocodile Connector features:
- Total length: 51 mm
- Color: black
- Isolated terminals: no
- Maximum opening: around 10 mm
- Conductive material: nickel-plated steel
- Includes 1 unit

Characteristic:
- Channels: 4 (independent protected by Optocouplers)
- Supply Voltage: 5V
- Output Current: 10A
- Relay activation current: 15mA ~ 20mA
- Isolation: Yes
- Indicator LED: For each channel
- Dimensions: 54x 72mm
- 5V Optocoupled 4-Channel Relay Module
- This module can be directly controlled by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL)
Useful links for Arduino / Raspberry programming and projects with Arduino / Raspberry boards:
User manual for the remote control + 4-channel 315 MHz IC2262 receiver:
- Relay Module Programming 5V 10A 4 Channel with remote control + 4 channel receiver

Welding Acid AG 35ml features:
Prepared transparent liquid, acidic, corrosive.
Prepares and facilitates welding on nickel-plated surfaces.
Apply a small amount of the preparation on the element to be welded, and then wash it with water. CAUTION:
Dangerous preparation, contains up to 35% phosphoric acid. In case of contact with skin or eyes, wash with plenty of water and consult a doctor. Keep closed and out of reach of children. It causes burns. Risk of serious eye damage.