JOYTECH JMD1200 Module User Manual
- June 6, 2024
- Joytech
Table of Contents
JOYTECH JMD1200 Module User
Scope of application
This document describes how to use transparent transmission mode to realize network connection, WiFi data exchange and ble data exchange based onJMD1200.
working principle
The transparent transmission reference design includes four main components:
Internet of things module jmd1200, mobile device (installing Bluetooth
distribution network APP), cloud Internet and external master control device
(external MCU). Generally, the external main control equipment connects
several sensors and peripherals to collect sensor information or control
peripherals. When the data needs to be uploaded to the cloud, the data is
packaged into specific network protocol packets (such as HTTP or mqtt packets)
and sent through transmission; When receiving cloud control or feedback
messages, the main control device obtains specific protocol data packets
through opl1000, analyzes them, and then controls local peripherals. 
Reference design application
- Use at command or Bluetooth distribution network app to complete the connection with wireless AP. You can also use Bluetooth for network distribution.
- Use the at command to connect to the cloud server or app and establish a TCP connection. Send and receive TCP data.
Use steps
- The master device uses the UART port connected by io8 / io9 to execute several at commands
- Send AT command to UART.
“at+cwmode=1\r\n
” “at+cwlap\r\n”
“at+cwjap=”Opu-TEST-AP”,”123456” \r\n“
Example:
Or:
When using the mobile app to complete Bluetooth network distribution, you need
to use at + cwmode = 0 to enter the jmd1200 into idle state (no Wi-Fi mode).
Then use at + cwmode = 4 to enter blewifi distribution mode. This mode will be
saved to flash and the restart will be executed automatically.
Reset,use app “opulinks_iot_app.apk” Complete Bluetooth device scanning, connection and AP connection.
Joytech Healthcare Co. Ltd
Data transceiver
**Mode introduction
**
FCC Statement
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one of the
following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Any changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate this equipment.
The device must not be co-located or operating in conjunction with any other
antenna or transmitter.
IC Statement
This device complies with RSS247 of Industry Canada. Cet appareil se conforme à RSS247 de Canada d’Industrie. This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. appareils radio exempts de licence. Son fonctionnement est sujet aux deux conditions suivantes: (1) le dispositif ne doit pas produire de brouillage prejudiciable, et (2) ce dispositif doit accepter tout brouillage recu, y compris un brouillage susceptible de provoquer un fonctionnement indesirable.
RF exposure information:
This device complies with FCC and IC radiation exposure limits set forth for
an uncontrolled environment.
Cet appareil est conforme aux limites d’exposition aux rayonnements de la FCC
et de l’IC établies pour un incontrôlé environnement.
The device should be installed and operated with a minimum distance of 20cm
between the radiator and your body. L’appareil doit être installé et utilisé
avec une distance minimale de 20cm entre le radiateuet votre corps.
Module Statement
The JMD1200 module has received Federal Communications Commission (FCC) CFR47
Telecommunications, Part 15 Subpart C “Intentional Radiators” single -modular
approval in accordance with Part15.212 Modular Transmitter approval. It‘s also
has been certified for use in Canada under Innovation, Science and Economic
Development Canada (ISED, formerly Industry Canada) Radio Standards Procedure
(RSP) RSP-100, Radio Standards Specification (RSS) RSS-Gen and RSS-247.
Single-modular transmitter approval is defined as a complete RF transmission
sub-assembly, designed to be incorporated into another device, that must
demonstrate compliance with FCC & IC rules and policies independent of any
host. A transmitter with a modular grant can be installed in different end-use
products (referred to as a host, host product, or host device) by the grantee
or other equipment manufacturer, then the host product may not require
additional testing or equipment authorization for the transmitter function
provided by that specific module or limited module device.
The user must comply with all of the instructions provided by the Grantee,
which indicate installation and/or operating conditions necessary for
compliance.
The host product itself is required to comply with all other applicable FCC &
IC equipment authorizations regulations, requirements and equipment functions
that are not associated with the transmitter module portion. For example,
compliance must be demonstrated: to regulations for other transmitter
components within a host product; to requirements for unintentional
radiators(Part 15 Subpart B & ICES-003), such as digital devices, computer
peripherals, radio receivers, etc.; and to additional authorization
requirements for the non-transmitter functions on the transmitter module
(i.e., Suppliers Declaration of Conformity (SDoC) or certification) as
appropriate (for example, Bluetooth and Wi-Fi transmitter modules may also
contain digital logic functions).
LABELING AND USER INFORMATION REQUIREMENTS
The JMD1200 module has been labelled with its own FCC ID & IC number, and if
the FCC ID & IC number is not visible when the module is installed inside
another device, then the outside of the finished product into which the module
is installed must also display a label referring to the enclosed module. This
exterior label can use wordings follows:
Contains Transmitter Module
FCC ID: 2AQVU0025, IC: 28012-JMD1200A or
Contains FCC ID: 2AQVU0025
Contains IC: 28012-JMD1200A
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