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nRF52832
RF-Star nRF52832 User Manual
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nRF52832
www
.szrfstar
.com
V
1.
3 - Sep., 2020
Shenzhe
n
RF
-star T
echnology Co.,
Ltd.
Page
23
of
58
Return V
alue
A
T+ECHO=[0,1]
OK
Remark
This command has two par
ameters:
0: Disable echo.
1: Enable echo.
A
T+ECHO?
Function
Query serial port echo.
Example
A
T+ECHO?
Return V
alue
A
T+ECHO=0
OK
Remark
The current device is echo
disabled.
A
T+ECHO=
Function
Set serial port echo.
Example
A
T+ECHO=1
Return V
alue
OK
Remark
Echo is enabled.
T
ake effect immediately
, do not save after power of
f.
•
Device Status Display
A
T+ST
A
TUS=?
Function
Query parameter range of this co
mmand.
Example
A
T+ST
A
TUS=?
Return V
alue
A
T+ST
A
TUS=[0,1]
OK
Remark
This command has two par
ameters:
0: Disable device status display
.
1: Enable device status display
.
A
T+ST
A
TUS?
Function
Query the current display st
ate of device status.
Example
A
T+ST
A
TUS?
Return V
alue
A
T+ST
A
TUS=1
23
25
Table of Contents
Table of Contents
3
Table of Tables
5
Table of Figures
6
Summary
7
Overview
8
Introduction
8
Features
8
Supporting Working Mode
9
Default Configuration at Slave Mode
9
Table 1. Power Consumption of Nrf52832
9
Default Configuration at Beacon Mode
10
Device Status
10
Multi-Connection
10
Figure 1. Multi-Connection Diagram
11
Package and Pin Assignment
12
Rf-Bm-Nd04(I)
12
Figure 2. PCB Footprint of RF-BM-ND04
12
Figure 3. PCB Footprint of RF-BM-ND04I
12
Table 2. Pin Functions of RF-BM-ND04(I)
13
Figure 4. Pin Assignment of RF-BM-ND04(I)
13
Rf-Bm-Nd08(I)
15
Figure 5. PCB Footprint of RF-BM-ND08
15
Figure 6. PCB Footprint of RF-BM-ND08I
15
Table 3. Pin Functions of RF-BM-ND08(I)
16
Figure 7. Pin Assignment of RF-BM-ND08(I)
16
UART Transparent Transmission Protocol (Bridge Mode)
18
BLE Protocol Specification (APP Interface)
19
Service UUID
19
BLE Data Receiving UUID
19
BLE Data Transmitting UUID
19
AT Command Operation UUID
19
AT Command
20
AT Command Format
20
AT Command List
20
Table 4. at Command Format Table
20
Table 5. at Command List
20
Detailed at Command
22
Enter at Command Mode
22
Exit at Command Mode
22
Device Name
22
Firmware Version
23
MAC Address
23
Serial Port Echo
23
Device Status Display
24
Broadcast
25
Connection Interval
26
Device Role
27
Slave Service
27
Master Scan
28
Master Connection
30
Disconnect
30
Automatically Reconnection
31
Specify the Role of Sending Data
32
Query Current Connected Devices
33
Designate Transmission Device
33
Delete Device
34
Observer
34
Beacon
35
Tx Power
35
Sleep Status
36
Baud Rate
37
User Authentication
38
Restart Device
39
Reset Device
39
Transparent Transmission Test
40
Test by APP (Android)
40
Test by PC End
42
Preparation before Use
42
Connection Steps
43
Ios APP Programming Reference
48
Master Reference Code (Transparent Transmission)
51
Application, Implementation, and Layout
52
Antenna
52
Figure 8. Specification of Antenna Seat
52
Figure 9. Specification of IPEX Wire
52
Reference Design
53
Figure 10. Antenna Output Mode Change
53
Figure 11. Reference Design of RF-BM-ND04
53
Basic Operation of Hardware Design
54
Trouble Shooting
55
Unsatisfactory Transmission Distance
55
Vulnerable Module
55
Figure 12. Recommendation of Antenna Layout
55
High Bit Error Rate
56
Electrostatics Discharge Warnings
56
Soldering and Reflow Condition
56
Table 6. Temperature Table of Soldering and Reflow
56
Optional Packaging
57
Figure 13. Recommended Reflow for Lead Free Solder
57
Figure 14. Optional Packaging Mode
57
Revision History
58
Contact Us
59
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RF-Star nRF52832 Specifications
General
Brand
RF-Star
Model
nRF52832
Category
Control Unit
Language
English
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