This is a TTGO TCall & SIM800C-DS V02 ESP32 WIFI Bluetooth Nano Card Slot SIM800C Development Board. The Module is a custom ESP32  based development board with an onboard 2G/GPRS Module SIM800C. The new board combines ESP32 WiFi & Bluetooth WiSoC with SIMCom SIM800C GPRS module, and also happens to rely on a USB-C port for power and programming instead of the more common micro USB port on this type of hardware.

There’s limited information about the board, and basically, all we got is this Github repo with a link to an Arduino sample, a library to control Seeduino GPRS, as well as datasheets and AT commands set for SIM800. Checking out Seeeduino GPRS Wiki may help getting started with the TTGO T-Call board.

Useful link:

1. We will need “StreamDebugger.h” header file. To download it, go to “Attachments” tab of webpage. Download and unzip the folder. Copy the entire folder into your Arduino folder or in Libraries folder.
2.  For main program, download the ZIP folder given in “Attachments” tab of webpage. Unzip the folder, goto Examples folder. Select Arduino TinyGSM folder. Open arduino file.
3. Copy the link  given following into Preferences of Arduino IDE.  Stable Link: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json . After that, click OK.
4. Now, go to the Tools->Board->Board Manager. Search ESP32. Install it.
5. After installation, go to “ESp32 Arduino” menu which is  below the Board Manager. Select “ESP32 Wrover Module”.
6.  It is mandatory to insert the SIM card which has 2G bands also.(Non-JIO because JIO does not have 2G bands). Also, write your  SIM’s Access Point Name in the program.
7. Uncomment the following line:  #define SIM800C_AXP192_VERSION_20200609 .
8. Select correct COM port, compile and upload  the program. Check the output in Serial monitor.

Features:

1. The wireless module is integrated with ESPRESSIF-ESP32 240MHz Xtensa dual-core 32-bit LX6 microprocessor.
2. It needs a power supply of 5V/1A and has a Type C port.
3. It features 802.11 b/g/n wifi protocol and Bluetooth v4.2BR/EDR and BLE standard protocol.
4. The wireless communication module supports cloud server development and SDK for user firmware development.

Package Includes:

1 x TTGO TCall & SIM800C-DS V02 ESP32 WIFI Bluetooth Nano Card Slot SIM800C Development Board
1 x Power Connecting cable
1 x Sticker Antenna
1 x Berg Pins.

NanoPi NEO Open Source Allwinner H3 Development Board Super Raspberry Pie Quad-core Cortex-A7 DDR3 RAM 512MB Run Ubuntu Core CPU  Allwinner H3, Quad-core Cortex-A7 Up to 1.2GHz, 512MB DDR3 RAM, Connectivity: 10/100M Ethernet, USB Host Type-A, USB 2.0 x3 OS/Software: u-boot, Ubuntu-Core-Xenial, Debian-Jessie, PCB Dimension: 40 x 40 mm, Power Supply: DC 5V/2A, Debug Serial Port: 4Pin, 2.54 mm pitch pin header. GPIO1: 2.54mm pitch 24pin. It includes UART, SPI, I2C, IO etc. GPIO2: 2.54mm pitch 12pin. It includes USB, IR, SPDIF, and I2S The NanoPi NEO is an Allwinner H3 based timy ARM board. It’s very well featured as a platform for IOT projects and innovations for makers and geeks.

Features:

1. Light weight
2. Easy to use
3. Plug and play device
4. Low power consumption
5. Compact design

Packages Includes:

1 x NanoPi Neo-LTS

Features:

• ED- CM4SEN provides 4G/LTE module, 4 channels RS485,1 channel RS232, 1 channel CAN, 1 channel Gigabit Ethernet port, alarm buzzer, battery-powered real-time clock
• The DSI interface of ED-CM4SEN is fully compatible with Raspberry Pi4 Model B and supports Raspberry Pi’s official 7″ touch display. A 5V/1.5A power output provides the power for Pi Display, the Standard HDMI interface can output 4K HD video.
• ED-CM4SEN provides 2 channels USB2.0 and 1 channel Micro USB2.0 interfaces, and a Micro USB interface is used to update the system image.
• The system supports +12V~18VDC power input, and the dimension of ED-CM4SEN is 103*73*32mm, which is slightly larger than Pi4 Model B. The connectors come out from the front and back end and a 103*73mm*5mm heat sink provide excellent cooling performance for the CPU, wireless module, and PMU, the whole system can work reliably in a high-temperature environment.
• Based on our real testing in the lab, ED-CM4SEN can work reliably at an ambient temperature of -25~60°C.
• Four M2.5 screw holes are reserved at the case bottom of the ED-CM4SEN, which is convenient for users to install the ED-CM4SEN on other equipment, it also supports DIN rail mounting.

Package Includes:

1 x EDATec ED-CM4SEN baseboard with WIFI Antenna 4G Module Metal Case 2GB RAM and 8GB EMMC

Trinket’s got a big sister in town – the Pro Trinket 5V! Pro Trinket combines everything you love about Trinket with the familiarity of the common core Arduino chip, the ATmega328. It’s like an Arduino Pro Mini with more pins and USB tossed in, so delicious. Trinket’s a year old now, and while its been great to see tons of tiny projects, sometimes you just need more pins, more FLASH, and more RAM. That’s why we designed Pro Trinket, with 18 GPIO, 2 extra analog inputs, 28K of flash, and 2K of RAM. Like the Trinket, it has onboard USB bootloading support – we opted for a MicroUSB jack this time. We also added Optiboot support, so you can either program your Pro Trinket over USB or with a FTDI cable just like the Pro Mini and friends. The Pro Trinket PCB measures only 1.5″ x 0.7″ x 0.2″ (without headers) but packs much of the same capability as an Arduino UNO. So it’s great once you’ve finished up a prototype on an official Arduino UNO and want to make the project smaller. The Pro Trinket 5V uses the Atmega328P chip, which is the same core chip in the Arduino UNO/Duemilanove/Mini/etc. at the same speed and voltage.

Features:

1. ATmega328P onboad chip in QFN package
2. 16MHz clock rate, 28K FLASH available
3. USB bootloader with a nice LED indicator & headers for an FTDI port for reprogramming
4. On-board 5.0V power regulator with 150mA output capability and ultra-low dropout, up to 16V input, reverse-polarity protection, thermal and current-limit protection.

Package Includes: 

1 x Adafruit Pro Trinket – 5V 16 MHz

The Spark-fun OpenLog Artemis is an open source data logger that comes preprogrammed to automatically log GPS, serial data, and various pressure, humidity, and distance sensors. All without writing a single line of code! OpenLog Artemis, or “OLA,” automatically detects, configures, and logs Qwiic sensors. The OLA is specifically designed for users who just need to capture a lot of data to a CSV and get back to their larger project. Simply connect a compatible Qwiic-enabled device, power up the OpenLog Artemis, and all incoming serial data is automatically recorded to a log file with baud rates up to 500000bps ^[1], supported! The OLA also has four ADC channels available on the edge of the board.

Voltages up to 2V can be logged with 14-bit precision up to 1900Hz for one channel and 1000Hz logging all four channels. Additionally, based on feedback from users we’ve added an on-board RTC so that all data can be time stamped. The OpenLog Artemis is highly configurable over an easy to use serial interface. Simply plug in a USB-C cable and open a terminal at 115200bps. The logging output is automatically streamed to both the terminal and the micro-SD. Pressing any key will open the configuration menu

Features:

1. Artemis Module (Cortex-M4F based Apollo3 micro-controller)
2. Configurable via CH340E and Artemis Firmware Upload GUI
3. Built-in MCP73831 single cell LiPo charger
4. Simply plug in a USB-C cable and open a terminal at 115200bps
5. The logging output is automatically streamed to both the terminal and the micro-SD
6. Support for FAT32 and older FAT16 formats up to 32GB with power control
7. RTC with 1mAhr battery backup

Specifications:

1. Operating voltage: 3.3V to 6.5V
2. Current consumption:
3. 20mA (Run)
4. ~80µA (Sleep)
5. ~18µA (Deep Sleep – regulator shut down)
6.  Ports:
7. 1x USB type C
8. 1x LiPo battery enabled
9. 1x Qwiic enabled I²C with power control
10. 1x SWD 2×5 header
11. 4x Analog-to-digital
12. 14-bit, up to 1900Hz, 2V max (3.3V comp

Package Include:

1 X Spark-fun Open-log Artemis (without IMU)

Adafruit METRO is a derivative of the Arduino UNO board (RS 769-7409) so you can find plenty of projects and example code to use and adapt. Running the ATmega328P at 16 MHz with 32 KB of flash and 2 KB of RAM it is perfect for most simple projects. There are 19 GPIO pins including analogue inputs, hardware UART, SPI and I²C, timers and PWM. Logic level is 5 V but it can easily be converted it to 3.3 V.
Headers are assembled and soldered on for you and the board is fully tested.

Features: 

1. Easy reprogramming
2. 2 KB of RAM
3. 32 KB of flash

Package Includes:

1 x Adafruit METRO 328 Fully Assembled – Arduino IDE compatible – ATmega328