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Controller
Arduino Nano V3 With USB Cable
Micro-Controller: Atmel ATmega328 SMD Package
Operating Voltage (logic level): 5 V
Input Voltage (recommended): 7-12 V
Digital I/O Pins: 14 (of which 6 provide PWM output)
Analog Input Pins: 8
DC Current per I/O Pin: 40 mA
Flash Memory: 32 KB (of which 2KB used by bootloader)
SRAM: 2 KB
EEPROM: 1 KB
SKU: STEM18002
Controller
Arduino Mega with USB Cable
Micro-controller: ATmega2560
Operating Voltage: 5V
Digital I/O Pins: 54 (of which 15 provide PWM output)
Analog Input Pins: 16
Flash Memory: 256 KB of which 8 KB used by bootloader
SRAM: 8 KB
EEPROM: 4 KB
Clock Speed: 16 MHz
USB Host Chip: MAX3421E
SKU: STEM18003
Controller
RASPBERRY PI 3 Model B+
SOC: Broadcom BCM2837B0, ?Cortex-A53 (ARMv8) 64-bit SoC
CPU: 1.4GHz 64-bit quad-core ARM Cortex-A53 CPU
RAM: 1GB LPDDR2 SDRAM
WIFI: Dual-band 802.11ac wireless LAN (2.4GHz and 5GHz ) and Bluetooth 4.2
Ethernet: Gigabit Ethernet over USB 2.0 (max 300 Mbps). Power-over-Ethernet support (with separate PoE HAT). Improved PXE network and USB mass-storage booting.
Thermal management: Yes
Video: Yes VideoCore IV 3D
Audio: Yes
USB 2.0: 4 ports
GPIO: 40-pins
Operating system support: Linux and Unix
Extended 40-pins GPIO header
SKU: STEM18004
Controller
Arduino Nano V3 With USB Cable
Micro-Controller: Atmel ATmega328 SMD Package
Operating Voltage (logic level): 5 V
Input Voltage (recommended): 7-12 V
Digital I/O Pins: 14 (of which 6 provide PWM output)
Analog Input Pins: 8
DC Current per I/O Pin: 40 mA
Flash Memory: 32 KB (of which 2KB used by bootloader)
SRAM: 2 KB
EEPROM: 1 KB
SKU: STEM18002
Controller
Arduino Mega with USB Cable
Micro-controller: ATmega2560
Operating Voltage: 5V
Digital I/O Pins: 54 (of which 15 provide PWM output)
Analog Input Pins: 16
Flash Memory: 256 KB of which 8 KB used by bootloader
SRAM: 8 KB
EEPROM: 4 KB
Clock Speed: 16 MHz
USB Host Chip: MAX3421E
SKU: STEM18003
Controller
RASPBERRY PI 3 Model B+
SOC: Broadcom BCM2837B0, ?Cortex-A53 (ARMv8) 64-bit SoC
CPU: 1.4GHz 64-bit quad-core ARM Cortex-A53 CPU
RAM: 1GB LPDDR2 SDRAM
WIFI: Dual-band 802.11ac wireless LAN (2.4GHz and 5GHz ) and Bluetooth 4.2
Ethernet: Gigabit Ethernet over USB 2.0 (max 300 Mbps). Power-over-Ethernet support (with separate PoE HAT). Improved PXE network and USB mass-storage booting.
Thermal management: Yes
Video: Yes VideoCore IV 3D
Audio: Yes
USB 2.0: 4 ports
GPIO: 40-pins
Operating system support: Linux and Unix
Extended 40-pins GPIO header
SKU: STEM18004
IOT
Node MCU ( ESP8266)
Open-source, Interactive, Programmable
Wi-Fi Module: ESP-12E module with 6 extra GPIOs
USB: Micro USB port for power, programming and debugging
Headers: 2 x 2.54 mm 15-pin header with access to GPIOs, SPI, UART, ADC and power pins
Drive Type: Dual high-power H-bridge
Flash size: 4 MB
Transfer rate: 110-460800 kbps
Miscellaneous: Reset and flash buttons
SKU: STEM18039
Controller
RASPBERRY PI 3 Model B+
SOC: Broadcom BCM2837B0, ?Cortex-A53 (ARMv8) 64-bit SoC
CPU: 1.4GHz 64-bit quad-core ARM Cortex-A53 CPU
RAM: 1GB LPDDR2 SDRAM
WIFI: Dual-band 802.11ac wireless LAN (2.4GHz and 5GHz ) and Bluetooth 4.2
Ethernet: Gigabit Ethernet over USB 2.0 (max 300 Mbps). Power-over-Ethernet support (with separate PoE HAT). Improved PXE network and USB mass-storage booting.
Thermal management: Yes
Video: Yes VideoCore IV 3D
Audio: Yes
USB 2.0: 4 ports
GPIO: 40-pins
Operating system support: Linux and Unix
Extended 40-pins GPIO header
SKU: STEM18004
Controller
Arduino Mega with USB Cable
Micro-controller: ATmega2560
Operating Voltage: 5V
Digital I/O Pins: 54 (of which 15 provide PWM output)
Analog Input Pins: 16
Flash Memory: 256 KB of which 8 KB used by bootloader
SRAM: 8 KB
EEPROM: 4 KB
Clock Speed: 16 MHz
USB Host Chip: MAX3421E
SKU: STEM18003
Controller
Arduino Nano V3 With USB Cable
Micro-Controller: Atmel ATmega328 SMD Package
Operating Voltage (logic level): 5 V
Input Voltage (recommended): 7-12 V
Digital I/O Pins: 14 (of which 6 provide PWM output)
Analog Input Pins: 8
DC Current per I/O Pin: 40 mA
Flash Memory: 32 KB (of which 2KB used by bootloader)
SRAM: 2 KB
EEPROM: 1 KB
SKU: STEM18002
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Wireless
SIM900A GSM GPRS Module with RS232 Interface and SMA Antenna
Quad-Band GSM/ 850/900/1800/1900MHz
Compatible with arduino, raspberry pi, arm, avr, pic, 8051
Power supply 12V/1A to 2 A max.
Use in the area of full signal strength.
Perfect suited for GSM based Microcontroller Projects (better than SIM300 and other GSM Modems)
Option for connecting MIC and SPEAKER directly to GSM MODEM for calls (LINE IN also available)
Supports communication through RS232 with DB9 Connector, TTL Pins and I2CPins
CALL SMS GPRS facility – MIC input, LINE input and SPEAKER output pins
SKU: STEM18208