I ordered two boards. Both accept code and the GPIO pins work fine. However, you cannot use WiFi. As others have pointed out, to use an external antenna you must replace the 0 ohm resistor. However, none of my boards work with the built-in antenna. If your application doesn't require Wi-Fi, these Wi-Fi cards are great.
πΆ Hawking HAI6SIP: Boost Your Wireless Signal Range with Hi-Gain 6dB Omni-Directional Antenna
9 Review
πΆ Proxicast Ultra Low Profile MIMO 3G / 4G / LTE Omni-Directional Screw-Mount Antenna for Verizon, AT&T, Sprint (and Others) Modems & Routers with SMA External Antenna Ports
9 Review
Boost Mobile Signal with 4G LTE Antenna TS9 - Dual πΆ Mimo WiFi Amplifier for Huawei Hotspot - Long Range High Gain Antenna
9 Review
π‘ MikroTik LHG 5: High-Gain Dual Polarization Grid Antenna, Enhanced 5 GHz Performance (US Version)
9 Review
π Juiced Systems Silver BizHUB USB-C Multiport Gigabit HDMI Hub with 3 USB 3.0 Ports, Gigabit Ethernet, 4K HDMI, SD/Micro SD, and USB-C Power Delivery
11 Review
π StarTech.com NETRS2321P: 1-Port RS232 to Ethernet IP Converter, Serial over IP Device Server - Black
5 Review
π USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
4 Review
π uni USB C Hub with Ethernet Adapter, 4K HDMI, Gigabit Ethernet, and 3 USB 3.0 Ports for MacBook Pro, iPad Pro, XPS
11 Review