TDA2822M Dual DIP8 Stereo Audio Low Voltage Power Amplifier

This detection module that allows you to detect your heart rate and blood oxygen level from your Arduino project. You can monitor your blood oxygen level yourself to avoid going to the doctor or pharmacy on purpose. Simply press the sensor with your finger and wait for the reading of hemoglobin (Spo2), heart rate and Perfusion Index (PI%). It is a solution as an integrated heart rate sensor and pulse oximetry, which includes two LEDs, a photodetector and is optimized for analog low noise optics.

Integrated Circuit Supports DIP16 Width 10.16 mm features:
- Type: DIP DIL
- Total number of pins: 16
- Step between pins: 2.54 mm
- Material: Polybutylene terephthalate
- Length: 17.78 mm
- Width: 10.16 mm
- Temperature min .: -25 °C
- Max temperature: +85 °C
- RoHS compliant

2x LM317T Voltage Regulator DC-DC 1.2V - 37V 1.5A TO-220 features:
- Output type: adjustable
- Voltage Output: 1.2V to 37V
- Manufacturer: ST Microelectronics
- Current Output: 1.5A
- Input voltage Vi- Max Vo: 40V
- Operating temperature: 0ºC to + 125ºC
- Encapsulated: TO-220
- Polarity: Positive
- Quantity: 2 units

Electric precision drill & gringer 12V features:
- electric drill: 12000 rpm, with on/off switch - grinder stone: 2 pcs - engraving bit: 2 pcs - collet: 2 pcs - direct driven   Specifications power: - 4 W (no load) / 16 W (load) / max. 20 W - speed: 12000 rpm - power supply: 12 VDC 0.4 A (not incl.) - drilling Ø: 1 mm   

WIFI transceiver based on the ESP8266 controller.
It has a microcontroller and 2 GPIO pins to be able to operate autonomously without the need for an external microcontroller. Characteristic: - Voltage of power: 3.3V
- Supported protocols: 802.11 b / g / n
- Network support: 2.4 GHz
- Band: 2400 (MHz)
- Wi-Fi Direct (P2p), Soft Access Point
- Integrated TCP / IP stack
- PLL, regulators and integrated power management units
- Output power: 0.15 (W); + 19.5dBm in 802.11b mode
- Consumption in low power mode:

Soldering Station 48W features:
- Heating element for soldering iron: 48W
- Temperature: 150 ° C - 480 ° C
- Power: 220-240Vac
- Temperature controlled soldering station 48W,
- Adjust the desired temperature of the soldering iron with the adjustment knob,
- The color-coded areas are similar to the following temperatures:
- Yellow approx. 150 „ƒ
- Orange approx.> 150 to 270 „ƒ
- Red approx.> 270 to 480 „ƒ
- Wait about 2-3 minutes until the solder tip reaches the set temperature.

The Ethernet module for Arduino and compatible boards based on the Wiznet W5500 chip, faster than the previous W5100. It provides an easy way to connect your module to the local network and internet based WIZNET with a TCP/IP interface. Compatible with libraries with the same Ethernet API. A web server can be built with this UNO board shield. It can be used as a server or as a client.

10mm copper tape - Conductor features:
- Material: copper foil - Size: 10 mm — 30 m - Copper foil thickness: 0.05 mm - Conductive - Adhesive - Approx Length: 30m Applications:
- EMI and RF shielding, - paper circuits, soldering, - electrical repairs, - slug repellent.