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Chengdu Ebyte Electronic Technology Co., Ltd.
12
GND
13
GND
P0.02
14
15
P0.03
16
P0.04
17
P0.05
18
P0.06
19
P0.07
20
P0.08
21
P0.09
22
P0.10
23
P0.11
24
GND
25
GND
26
P0.12
27
P0.13
28
P0.14
29
P0.15
30
P0.16
SWDIO/
31
nRESET
32
SWDCLK
33
P0.17
34
P0.18
35
P0.19
36
P0.20
4. Basic Operation
4.1 Hardware Design
It is recommended to use DC stabilized power supply to supply power to the module. The power supply ripple
coefficient is as small as possible, and the module needs to be reliably grounded.
Please pay attention to the correct connection of the positive and negative poles of the power supply. If the reverse
connection is connected, the module may be permanently damaged.
Please check the power supply to ensure that between the recommended supply voltage, if exceeding the maximu m,
the module will be permanently damaged.
Please check the stability of the power supply, the voltage can not be significantly frequent.
When designing the power supply circuit for the module, it is often recommended to reserve more than 30% of the
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.
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Ground electrode, connect to power reference ground
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Ground electrode, connect to power reference ground
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0.9 V Digital power supply decoupling controller
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Serial line debugging and programming debugging / M CU reset, low level enable
Input
Input
Serial Line Debugging / Clock Input Debugging and Programming
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
Input/Output
M CU GPIO
★ For more details, please refer to 《 nRF51822Datasheet 》 in NORDIC
E73-2G4M04S1D User manual
5
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