Battery LIPO 180mAh 3.7V

NodeMcu module based on ESP8266 controller and programming in Lua language.
NodeMcu is equipped with 10 GPIO, PWM, I2C, 1-wire and ADC.
ESP8266-12E is an improved version of ESP8266-12.
It works as a standard WiFi 802.11 b / g / n 2.4 GHz.
USB communication - the CH340 chip. Characteristics of ESP 12E:
- Supply voltage: 3.3V (LOGICAL LEVELS: 3.3V)
- Supported protocols: 802.11 b / g / n
- Network support: 2.4 GHz
- Band: 2400 (MHz)
- Wi-Fi Direct (P2p), Soft Access Point
- TCP Stack / Integrated IP
- PLLs, Regulators and Integrated Power Management Units
- Output Power: 0.15 (W); + 19.5dBm in 802.11b mode

In the case of a battery pack, the BMS (Battery Management System) balancing protection circuit allows charging and discharging to be individually controlled. That is, the circuit controls that all cells are charged and discharged at approximately the same voltage. The current during charging should be limited, because the cell will "absorb" the current given to it, but a higher current than the one established by the manufacturer (generally a safe current is 1C ) can cause the cell to overheat and, in extreme cases, explode. The same relationship also applies to discharge.

- This module includes PA preamplifier and LNA (Low-noise amplifier)
- Comes with the SMA antenna for 2.4GHz (2dB)
- Outdoor - transmission up to 250kbps and a distance of up to 1 kilometer
- Works at 2.4GHz frequencies (free frequency) and is ideal for telemetry projects, robots, peripherals control, video game control applications, remote temperature sensors, pressure, alarms, etc ... NRF24L01 + Wireless Antenna Transceiver 2.4 GHz 1Km PA LNA features:
* Based on chip NRF24L01 +
* Free band: 2.4GHz ISM
* Speed: 250kbps, 1Mbps, 2Mbps
* Work current
- Reception: 45 mA
- Transmission: 115 mA (4.2uA -sleep mode)
* Receiving sensitivity:
-104dB 250kbps
- 95dB 1Mbps
- 92dB 2Mbps
* SPI interface

LITHIUM POLYMER BATTERY Battery LIPO 190mAh 3.7V features:
-Battery type-lithium polymer. - Type of battery terminals- 3 cables. -Voltage of the battery-3.7 V -Capacity of the battery- 190 mAh. - Embedded PCM security chip (protection against overload, over discharge, short circuit). Dimensions: -Battery length / depth- 33 mm -Battery width / diameter- 44 mm It has three cables with a 3-pin connector with a separation of 2 mm. Cables: Red: positive. Black: negative. Yellow: thermistor output.

Product Category: Bipolar Transistor, NPN.
2N2222 NPN 40V 800mA 300MHz transistor features:

- Package / Case: TO-92
- Quantity: 20 units
- Collector-base voltage VCBO: 75V
- Collector-emitter voltage VCEO: 40V
- VEBO emitter-base voltage: 6V
- Continuous collector current: 600mA
- DC MAX collector current: 800mA
- Maximum power dissipation: 1.6W

High grade in the absorption of tin for professionals.
Copper mesh roll for desoldering electronic components.
Desoldering Wire 1mm 1.0 features:
- Material: Copper
- Length: 1.5m
- Width: 1.0mm
- Desoldering Braid Solder Remover Wick 1mm / 1.5m
- Pure copper braid construction
- Quick removal welding
- Excellent thermal for a faster and safer desoldering

Heat Shrinkable Tube 5 Colors 3 Meters Package features:
- Heat shrink tubing is used to connect electrical cables, isolate resistor and capacitor points, mark and protect cables Electrical, protect metal bars or tubes against corrosion and protect antennas.
- These heat shrink tubes are very flexible and of high quality. Made in EU
- Different sizes of 20 cm each are delivered:
* 1,6mm: black, brown, red, yellow, orange
* 2,4mm: black, brown , red, yellow, blue
* 3,2mm: black, brown, red, yellow, blue
- Quantity: 15 units
- Material: polyolefin
- Shrinkage ratio: 2: 1 (maximum reduce to 1/2 of its supplied diameter)
- Minimum shrinkage temperature: 115 ° C maximum 200 ° C

Ideal to control the speed of DC motors. Speed controller for DC motor (PWM) 10V-30VDC 3A 120W features:
- Input voltage: 10-30VAC
- Max output DC current: 3A (max 4A)
- Max power: 120W (in case input voltage> 24V)
- Dimensions: 74x47x28mm
- PWM frequency: 500kHz
- Duty Cycle adjustable: 5% -95%
Please note that the voltage applied to the motor will be the supply voltage applied to the circuit