NodeMCU-BU01Specification V 1.0
C opyright © Shenzhen Ai-Thinker Technology Co.,Ltd All Rights Reserved 2020
12
BT0
BOOT0
BOOT0 foot on MCU, control MCU start mode
BT1
BOOT1
BOOT1 foot on MCU, control MCU start mode
RESET keys
RESET
Reset button
BTN/PA0 keys
BTN/PA0
Press button to pull up PA0 pin
BOOT pin controls start-up mode:
BOOT0
BOOT1
MODE
0
x
FLASH
1
1
SRAM
1
0
ISP
5.Schematic diagrams
6.Design guidance
1. Antenna layout requirements
It is forbidden to place metal parts around the antenna, and to put away from
high frequency devices.
2、Power supply