Arduino Nano 33 Ble Sense rev2

Screen OLED 0.96" 128x64 White SPI I2C 7 Pin features:
- Oled 0.96 "screen with 128 * 64 pixels
- Drive IC model SDD1306
- Power: 3V-5.5V - Viewing angle: 160 degrees
- SPI interface (I2C can be changed)
- Low consumption: 0.08W
- Operating temperature: -20 to 70 ºC
- PCB board dimension: 27 x 27mm
- Supports many control chip: 51 Series, MSP430 Series, STM32 / 2, CSR IC, etc.
- OLED technology offers high contrast, significantly improves black on screen energy efficiency - very low power consumption Applications: - Due to the size, quality and consumption of smart watch products, portable meters , medical devices, portable players, etc.

Sonoff 4CH is a 4 channel WiFi switch allowing control of 4 devices at the same time. It is a very similar device as Sonoff Basic, nonetheless extending Basic's functionality to more than 1 device. The devices can be controlled either by switches as provided on the 4CH box or by eWeLink application as with any other Sonoff product

The module uses a 24-bit high precision A/D conversion chip HX711.
The input circuit can be configured to provide a bridge.
The electric bridge voltage sensor model (such as pressure, weight) is an ideal sampling module with high precision and low cost. HX711 Module Weighing Pressure Sensor 24 Bits features:
- Two selectable differential input channels
- Active low noise PGA with selectable gain of 32, 64 and 128
- Power supply regulator for load cell and ADC analog power supply
- Oscillator on chip that does not require external component with optional external glass
- Power-on-reset on the chip
- Simple serial control and serial interface: controls driven by pins, programming is not required
- Output data rate 10SPS or 80SPS selectable

40x Cables Female-Male 20cm features:
-Length: 20cm
-Quantity: 40 cables
-Connectors have male and female header contacts at either end
-Compatible with female connectors 2,54mm
-High quality and good working conditions
-Easy to install and use

40x Female-Female Cable 10cm features:
- Length: 10cm
- Quantity: 40 cables
- Dupont female connectors on both ends
- Compatible with 2.54mm male connectors
- High quality and good working conditions
- Easy to install and use

Quartz Crystal Oscillator 20 MHz features:
- Low Profile Crystal Oscillator
- Type: Quartz Crystal 20 MHz
- Frequency: 20 MHz
- Format: Low profile
- Assembly: Intern

This sensor behaves like a switch that closes the circuit when both parts are put together. Ideal for intrusion detection, alarm system, light control and opening and closing devices. 

40x Female Male 10cm features:
- Length: 10cm
- Quantity: 40 cables
- Compatible with 2.54mm male connectors
- High quality and good working conditions
- Easy to install and use