TTGO
TTGO T-SIM7600E-H ESP32 WiFi Bluetooth 18560 Battery Holder Solar Charge Module Development Board
TTGO T-SIM7600E-H ESP32 WiFi Bluetooth 18560 Battery Holder Solar Charge Module Development Board
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1. Main chip: ESP32
2. Module: ESP32-WROVER-B,SIM7600E-H
3. Interface:USB,SD Card,Solar Input interface
4. Flash Memory: 4M Flash / 8M PSRAM
5. Button: Reset,Power switch
6. USB to TTL: CP2104
7. Car Clock: 40MHz
8. SIM Card Size: Nano SIM Card
9. SIM Antenna
10. GPS Antenna
11. Operating Temperature Range: -40-85 degrees
12. Product Size: 111mm x 37mm x 20mm
13. Product Weight: 50g
Power Specifications:
1. Working Voltage: 5V input
2. Solar input voltage range???4.4-6V
3. Working Curent: About 200mA
4. Charging Current: 780mA
5. Battery Model: 18650
6. Battery Holder Model: 18650 battery holder
7. JST Connector: 2pin 2mm
8. USB: TYPE-C 3.0
Wi-Fi:
1. Standard: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC
2. Protocol: 802.11 b/g/n(802.11n???speed up to150Mbps)A-MPDU and A-MSDU polymerization???support 0.4??S Protection interval
3. Frequency: range 2.4GHz~2.5GHz(2400M~2483.5M)
4. Transmit Power: 22dBm
5. Communication distance: 300m
Bluetooth:
1. Protocol meet Bluetooth : v4.2BR/EDR and BLE standard
2. Radio Frequency : with -97dBm sensitivity NZIF receiver Class-1, Class-2&Class-3 emitter AFH
3. Audio Frequency : CVSD&SBC audio frequency
Software Specification:
1. Wi-Fi Mode : Station/SoftAP/SoftAP+Station/P2P
2. Security Mechanism : WPA/WPA2/WPA2-Enterprise/WPS
3. Encryption Type : AES/RSA/ECC/SHA
4. Firmware Upgrade :UART download/OTA???Through network/host to download and write firmware???
5. Software Development : Support cloud server development /SDK for user firmware development
6. Networking Protocol : IPV4, IPV6, SSL, TCP/UDP/HTTP/FTP/MQTT
7. User Configuration : AT + Instruction set, cloud server, Android/iOS APP
8. OS : FreeRTOS
Version update function:
1. The battery's positive and negative poles are connected to the wrong protection, overcharge and over discharge protection
2. GPS power control, reduce power consumption, the lowest reaches 300uA when sleeping
3. Replacement of ordinary charging IC with solar charging IC
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I saved time over buying all the individual components. The GitHub project for this board contains all example source code, schematics and even a 3d model to help with enclosure / product design. Would recommend!