E105-BS21-TB SparkLink Low Energy Module Development Board
[Power supply interface]：USB
[Communication interface]：UART
[Product size]：62.74 * 25.4mm
[Introduction]：E105-BS21-TB is an entry-level development board equipped with the SLE1.0 protocol SparkLink module E105-BS21. The SparkLink module development board has complete SLE1.0 Star Flash functions, and most of the pins of the Star Flash module on the board have been led out to the pin headers on both sides. Developers can easily connect a variety of peripheral devices through jumpers according to actual needs, and the development board can also be plugged into a breadboard for use.
Official Store| Pin number | Pin name | type | Pin usage |
| 1 | GPIO26 | I/0 | General IO port |
| 2 | GPIO25 | I/0 | General IO port |
| 3 | GPIO27 | I/0 | General IO port |
| 4 | GPIO28 | I/0 | General IO port |
| 5 | GPIO29 | I/0 | General IO port |
| 6 | GPIO30 | I/0 | General IO port |
| 7 | GPIO31 | I/0 | General IO port |
| 8 | GPIO2 | I/0 | General IO port |
| 9 | GND | - | Module GND |
| 10 | VDD | - | Power input 1.8V~3.6V |
| 11 | GPIO3 | I/0 | General IO port |
| 12 | GPIO4 | I/0 | General IO port |
| 13 | GPIO5 | I/0 | General IO port |
| 14 | GPIO6 | I/0 | General IO port |
| 15 | GPIO9 | I/0 | General IO port |
| 16 | GPIO10 | I/0 | General IO port |
| 17 | GPIO11 | I/0 | General IO port |
| 18 | USB- | - | USB negative pole |
| 19 | USB+ | - | USB positive |
| 20 | GPIO12 | I/0 | General IO port |
| 21 | GPIO13 | I/0 | General IO port |
| 22 | GPIO14 | I/0 | General IO port |
| 23 | GPIO15 | I/0 | General IO port |
| 24 | GPIO16 | I/0 | General IO port |
| 25 | GPIO17 | I/0 | General IO port |
| 26 | GPIO18 | I/0 | General IO port |
| 27 | GPIO19 | I/0 | Communication serial port RXD |
| 28 | GPIO20 | I/0 | Communication serial port TXD |
| 29 | SWCLK | - | debug pin |
| 30 | SWEDING | - | debug pin |
| 31 | GPIO22 | I/0 | General IO port |
| 32 | GPIO23 | I/0 | General IO port |
| 33 | GPIO24 | I/0 | General IO port |
| 34 | RESET | I | Reset pin, cannot be left floating, pull low for 10ms to reset, can be used for deep sleep wake-up |