3.6/3.7V Dual 18650 Rechargeable Lithium Battery Charger
sim7670c ic is good but it booting is very complication any other metod to connect 4G pius sms read and write
2A Dual L298N Motor Driver Module with PWM Control
SD Card Module
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The module (MicroSD Card Adapter) is a Micro SD card reader module and the SPI interface via the file system driver, and microcontroller system to complete the Micro SD card read and write files. Users can directly use the Arduino IDE that comes with an SD card to complete the library card initialization and read-write. 3.3V voltage regulator circuit: LDO regulator output is 3.3V level converter chip, Micro SD card supply.
Level conversion circuit: Micro SD card into the direction of the signal is converted to 3.3V, MicroSD card interfaces to control the direction of the MISO signal is also converted into 3.3V, and a general AVR microcontroller system can read the signal , . Micro SD card connector: a self: bomb deck, easy card insertion. Positioning holes: 4 M2 screws positioning hole diameter is 2.2mm, the positioning of the module is easy to install, to achieve inter-module combination.
check out : 8GB Class 6 SD Card
| Power Supply | 4.5V – 5.5V, 3.3V |
| Positioning Holes | 4 M2 screws positioning hole diameter of 2.2mm |
| Control Interface | GND, VCC, MISO, MOSI, SCK, CS |
| Dimensions | 45 x 28mm |
| Weight | 6g |