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RPi0 4G Cat1
overview
The Raspberry Pi Zero series (including the Zero, Zero W/H, and Zero 2W) is a highly cost-effective embedded system platform, known for its small size, low power consumption, and acceptable performance, making it suitable for many lightweight application scenarios. Although the Zero series is compact, it reserves a large number of expansion interfaces. Especially on the backside of the board, gold-plated test points for USB and power are brought out. We can use these sets of USB and power test points to expand various types of peripherals.
This expansion board is essentially a USB hub that connects to the Zero's USB port via pogo pins. It expands four USB ports via USB, with one USB port converted to a 4G Cat1 module, and three USB 2.0-C host ports.
4G Cat1 is a high-cost-performance module aimed at medium-speed IoT applications around 10 Mbps. The 10 Mbps downlink and 5 Mbps uplink speeds can satisfy the majority of connectivity and transmission requirements. The CAT1 module is driver-free and automatically recognized in the Raspberry Pi OS, Ubuntu OS, and OpenWrt, making it easy to use.
(Note: When using this expansion board, the Raspberry Pi Zero development board cannot utilize the OTG function. If you need to use the OTG function, all interfaces on the expansion board will become unavailable.)
Hardware Spec
1. This board connects to the Raspberry Pi Zero's USB port and power contacts via four pogo pins for both power supply and communication.
2. A USB-C power port, which functions are the same as the power port on the Raspberry Pi Zero itself. You can choose to use either one, but not both simultaneously.
3. A 4G CAT1 module, can option the GPS functionality. Users in other countries can also select other CAT1 modules that match their frequency bands.
4. A Nano SIM card slot (located on the reverse side). Note: The old version does not support SIM card hot-swapping, while the new version (2607 version) does!
5. A 1 GEN IPEX connector, which can be used with external 4G FPC or rod antennas.
6. Three USB 2.0 Type-C host, with each USB port capable of supplying 1A of power.
7. Have debugging UART and the AT main UART, both with 3.3V voltage levels.
8. Three LEDs:
one is the power indicator for the expansion board. one is the power indicator for the 4G module. one is the NET led. 9. A BOOT button and a reset button.
10. Sizes: 65*30*6.6mm, with four M2.5mm mounting holes.
11. An optional 3D printed base is available to protect the circuit board.
12. The circuit board uses an ENIG (Electroless Nickel Immersion Gold) process, is produced without lead.