E77-915MBH-01 E77 Series Development and Evaluation Kit
[Power interface]：USB
[Communication interface]：TTL
[Operating frequency]：915MHz
[Size]：65*30mm
[Introduction]：The E77-915MBH-01 is an entry-level development board equipped with the high-power LoRaWAN node module E77-915M30S. The evaluation test kit features full module functionality, comes pre-installed with LoRaWAN protocol firmware, and most of the module pins are brought out to the side headers, allowing developers to easily connect various peripheral devices via jumpers as needed. The development board can also be used on a breadboard.
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| Pin number | Pin Name | type | Pin Applications |
| 1 | NC | - | - |
| 2 | PB2 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 3 | PB12 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 4 | PA10 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 5 | PA11 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 6 | PA12 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 7 | GND | Input/Output | Ground wire, connected to power reference ground |
| 8 | PA15 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 9 | PC13 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 10 | NRST | enter | Chip reset trigger input pin, active low. |
| 11 | SWEDING | enter | Program Download |
| 12 | SWCLK | enter | Program Download |
| 13 | VCC | enter | Power supply, range 3.3～5.5V. |
| 14 | GND | Output | Ground wire, connected to power reference ground |
| 15 | PB3 | Input/Output | TX_LED, data transmission indicator pin, outputs a high level upon completion of transmission. |
| 16 | PB4 | Input/Output | RX_LED, receive data indicator pin, outputs high level upon completion of reception. |
| 17 | PB5 | Input/Output | LINK_LED, network access status indicator pin, outputs a high level when network access is successful. |
| 18 | PB6 | Input/Output | USART1_TX (Includes unused firmware, reserved) |
| 19 | PB7 | Input/Output | USART1_RX (Included firmware, unused, reserved) |
| 20 | PB8 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 21 | PA0 | Input/Output | The soft boot pin is pulled low for 1 second upon power-on to enter IAP upgrade mode. |
| 22 | PA1 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 23 | TXD | Input/Output | LP_USART2_TX (AT command serial port transmit pin) |
| 24 | RXD | Input/Output | LP_USART2_RX (AT command serial port receive pin) |
| 25 | PA4 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 26 | PA5 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 27 | PA8 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |
| 28 | PA9 | Input/Output | Configurable general-purpose I/O ports (see STM32WLE5CCU6 manual for details) |