Solar charger USB DC mobile power supply

TTL level conversion module 5V 3.3V IO Single Interchange Compatible I2C SPI.
Use of high-speed dual-level IT supply level translator chip design. TTL Level Converter 5V - 3.3V IO LJ245A features:
- Main chip: Octal bus transceiver and change from 3.3-V to 5-V with outputs of 3 states LJ245A of Texas Instrument
- VCCA power supply voltage: 4.5 - 5.5 VDC
- VCCB power supply voltage: 2.7 - 3.6 VDC
- Low level input voltage V (IL): 0.8 V
- High-level input voltage V (IH): 2 V
- Low level output current I (OL): 12 - 24 mA
- High level output current I (OH): -24 - -12 mA
- 8 channels allow the conversion of the IO communication level
- Channel levels A and B are controlled by VCCA and VCCB

15x Electrolytic Capacitor 10uF 25V 105ºC PIC Arduino features:
-Type: Electrolytic Capacitor
-Assembly: intern
-Value: 10uF
-Maximum tension: 25V
-Maximum temperature: 105º C
-Dimensions: 5x11mm
-Quantity: 15 units

ESP32 processor development board with WiFi and Bluetooth (BLE) compatible with Arduino Uno shields. It is much faster than the ESP8266 processor (NodeMCU and the like) . Wemos D1 ESP32 R32 WROOM-32 WiFi and Bluetooth features:
Power: 5-12VDC WiFi 802.11 b / g / n / e / i (802.11n up to 150 Mbps) Bluetooth v4.2 BR / EDR and BLE. Compatible with Arduino Uno shields. 6 Analog input. 20 digital inputs / outputs (3.3V) (with PWM functions, interrupt). UART, SPI, I2C communication. Size: 68Ã — 53 mm Micro USB connection. 4Mbytes Flash Memory 520Kb Clock: 240Mhz (a core dedicated to WiFi processing) Temperature: -40C + 85C Current: 250mA (max) Current in saving mode: 0.15mA Operating current: 20mA (without WiFi) Useful links for Arduino / Raspberry programming and projects with Arduino /

5mm copper tape

Conductor features: material copper foil, size: 5 mm x30 m, copper foil thickness: 0.05 mm, conductive, adhesive, approx length: 30m. Applications:
 EMI and RF shielding, paper circuits, soldering, electrical repairs, slug repellent.

Producto de calidad con certificación de "seguridad probada" de TÃœV Süd y CE, LPS.

Build a city of paper, and make its lighting circuits by discovering the magic of this electrically conductive painting. Stimulate the creativity and manual skills of children aged 12 and over, with the assembly of this paper illuminated city. 

As easy as squeezing the tube, drawing a line of paint and folding the paper templates, you can now control the lighting of this circuit.

DS3231 Precision RTC Real Time Clock Module AVR ARM features:
- Can be used in projects of Arduino, Raspberry Pi, PIC, AVR
- Function compatible with the DS 3231
- Power supply voltage: +2.3 V to +5.5 V
- Temperature range: -40 ° C to + 85 ° C
- Low energy consumption
- Full clock calendar functions that include seconds, minutes, hours, date, month and year and valid until leap year compensation
- Two alarm calendar
- Interface: I2C