Changes for page NSPH01-NB-IoT Soil pH Sensor User Manual

Last modified by Bei Jinggeng on 2024/03/30 17:53

From version < 50.1 >

edited by David Huang
on 2022/09/08 09:48

To version < 40.1 >

edited by David Huang
on 2022/09/07 16:58

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@@ -1,24 +1,18 @@
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  [[image:)YK]Y_LZJIO]J2~~VA}OQJM2.png]]
--**Table of Contents:**
++= **1. Introduction** =
--{{toc/}}
++== **1.1 What is NSPH01 Soil pH Sensor** ==
++The Dragino NSPH01 is a **NB-IOT soil ph sensor** for IoT of Agriculture. It is designed to measure the soil PH and soil temperature, so to send to the platform to analyze the soil acid or alkali level. The probe is IP68 waterproof.
--
--= 1. Introduction =
--
--== 1.1 What is NSPH01 Soil pH Sensor ==
--
--The Dragino NSPH01 is a **NB-IoT soil pH sensor** for IoT of Agriculture. It is designed to measure the soil pH and soil temperature, so to send to the platform to analyze the soil acid or alkali level. The probe is IP68 waterproof.
--
  NSPH01 probe is made by Solid AgCl reference electrode and Pure metal pH sensitive electrode. It can detect soil's** pH **with high accuracy and stable value. The NSPH01 probe can be buried into soil for long time use.
  NarrowBand-Internet of Things (NB-IoT) is a standards-based low power wide area (LPWA) technology developed to enable a wide range of new IoT devices and services. NB-IoT significantly improves the power consumption of user devices, system capacity and spectrum efficiency, especially in deep coverage.
  \\NSPH01 supports different uplink methods include **TCP,MQTT,UDP and CoAP  **for different application requirement.
--\\NSPH01 is powered by **8500mAh Li-SOCI2 battery**, It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
--\\To use NSPH01, user needs to check if there is NB-IoT coverage in the installation area and with the bands NSPH01 supports. If the local operator supports it, user needs to get a **NB-IoT SIM card** from local operator and install NSPH01 to get NB-IoT network connection.
++\\NSPH01 is powered by  **8500mAh Li-SOCI2 battery**, It is designed for long term use up to 5 years. (Actually Battery life depends on the use environment, update period & uplink method)
++\\To use NSPH01, user needs to check if there is NB-IoT coverage in local area and with the bands NSPH01 supports. If the local operate support it, user needs to get a **NB-IoT SIM card** from local operator and install NSPH01 to get NB-IoT network connection.
  (% style="text-align:center" %)
  [[image:image-20220907153151-1.png]]
@@ -26,12 +26,12 @@
  (% style="text-align:center" %)
  [[image:M_K`YF9`CAYAE\@}3T]FHT$9.png]]
--== 1.2 Features ==
++**1.2 Features**
  * NB-IoT Bands: B1/B3/B8/B5/B20/B28 @H-FDD
  * Monitor soil pH with temperature compensation.
  * Monitor soil temperature
--* pH and Temperature alarm function
++* PH and Temperature alarm function
  * Monitor Battery Level
  * Support pH calibration by end user
  * Uplink on periodically
@@ -40,10 +40,10 @@
  * IP68 rate for the Sensor Probe
  * Ultra-Low Power consumption
  * AT Commands to change parameters
--* Micro SIM card slot
++* Micro SIM card slot for NB-IoT SIM
  * 8500mAh Battery for long term use
--== 1.3  Specification ==
++**1.3  Specification**
  **Common DC Characteristics:**
@@ -59,7 +59,7 @@
  * - B20 @H-FDD: 800MHz
  * - B28 @H-FDD: 700MHz
--== 1.4 Probe Specification ==
++**1.4 Probe Specification**
  **Soil pH:**
@@ -78,19 +78,19 @@
  * IP68 Protection
  * Length: 3.5 meters
--== 1.5 Applications ==
++**1.5 Applications**
  * Smart Agriculture
--== 1.6 Pin mapping and power on ==
++**1.6 Pin mapping and power on**
  (% style="text-align:center" %)
  [[image:image-20220907153300-2.png]]
--= 2.  Use NSPH01 to communicate with IoT Server =
++**2.  Use NSPH01 to communicate with IoT Server**
--== 2.1  How it works ==
++**2.1  How it works**
  The NSPH01 is equipped with a NB-IoT module, the pre-loaded firmware in NSPH01 will get environment data from sensors and send the value to local NB-IoT network via the NB-IoT module.  The NB-IoT network will forward this value to IoT server via the protocol defined by NSPH01.
@@ -99,30 +99,32 @@
  (% style="text-align:center" %)
  [[image:image-20220907153416-3.png]]
--== 2.2  Configure the NSPH01 ==
++**2.2  Configure the NSPH01**
--=== 2.2.1  Test Requirement ===
++**2.2.1  Test Requirement**
--To use NSPH01 in the field, make sure meet below requirements:
++To use NSPH01 in your city, make sure meet below requirements:
  * Your local operator has already distributed a NB-IoT Network there.
  * The local NB-IoT network used the band that NSPH01 supports.
  * Your operator is able to distribute the data received in their NB-IoT network to your IoT server.
--Below figure shows our testing structure. Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NSPH01 will use CoAP(120.24.4.116:5683) or raw UDP(120.24.4.116:5601) or MQTT(120.24.4.116:1883)or TCP(120.24.4.116:5600)protocol to send data to the test server.
++Below figure shows our testing structure.   Here we have NB-IoT network coverage by China Mobile, the band they use is B8.  The NSPH01 will use CoAP(120.24.4.116:5683) or raw UDP(120.24.4.116:5601) or MQTT(120.24.4.116:1883)or TCP(120.24.4.116:5600)protocol to send data to the test server
  (% style="text-align:center" %)
  [[image:image-20220907153445-4.png]]
--=== 2.2.2  Insert SIM card ===
++**2.2.2  Insert SIM card**
--User need to take out the NB-IoT module and insert the SIM card like below. ((% style="color:red" %) Pay attention to the direction(%%))
++Insert the NB-IoT Card get from your provider.
++User need to take out the NB-IoT module and insert the SIM card like below:
++
  (% style="text-align:center" %)
  [[image:image-20220907153505-5.png]]
--=== 2.2.3  Connect USB – TTL to NSPH01 to configure it ===
++**2.2.3  Connect USB – TTL to NSPH01 to configure it**
  User need to configure NSPH01 via serial port to set the **Server Address** / **Uplink Topic** to define where and how-to uplink packets. NSPH01 support AT Commands, user can use a USB to TTL adapter to connect to NSPH01 and use AT Commands to configure it, as below.
@@ -149,7 +149,7 @@
  **Note: the valid AT Commands can be found at:  **[[**https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0**>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
--=== 2.2.4  Use CoAP protocol to uplink data ===
++**2.2.4  Use CoAP protocol to uplink data**
  **Note: if you don't have CoAP server, you can refer this link to set up one: **[[**http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/**>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Set%20up%20CoAP%20Server/]]
@@ -170,7 +170,7 @@
  [[image:image-20220907153612-8.png||height="529" width="729"]]
--=== 2.2.5  Use UDP protocol to uplink data(Default protocol) ===
++**2.2.5  Use UDP protocol to uplink data(Default protocol)**
  This feature is supported since firmware version v1.0.1
@@ -185,7 +185,7 @@
  [[image:image-20220907153703-10.png||height="309" width="738"]]
--=== 2.2.6  Use MQTT protocol to uplink data ===
++**2.2.6  Use MQTT protocol to uplink data**
  This feature is supported since firmware version v110
@@ -205,7 +205,7 @@
  MQTT protocol has a much higher power consumption compare vs UDP / CoAP protocol. Please check the power analyze document and adjust the uplink period to a suitable interval.
--=== 2.2.7  Use TCP protocol to uplink data ===
++**2.2.7  Use TCP protocol to uplink data**
  This feature is supported since firmware version v110
@@ -218,23 +218,25 @@
  (% style="text-align:center" %)
  [[image:image-20220907153827-14.png||height="236" width="684"]]
--=== 2.2.8  Change Update Interval ===
++**2.2.8  Change Update Interval**
--Users can use the below command to change the **uplink interval**.
++User can use below command to change the **uplink interval**.
--* **AT+TDC=7200      **  ~/~/ Set Update Interval to 7200s (2 hour)
++* **AT+TDC=600      **  ~/~/ Set Update Interval to 600s
--**NOTE: By default, the device will send an uplink message every 2 hours. Each Uplink Include 8 set of records in this 2 hour (15 minute interval / record).**
++**NOTE:**
++**~1. By default, the device will send an uplink message every 2 hour.**
--== 2.3  Uplink Payload ==
++**2.3  Uplink Payload**
  In this mode, uplink payload includes 87 bytes in total by default.
  Each time the device uploads a data package, 8 sets of recorded data will be attached. Up to 32 sets of recorded data can be uploaded.
--|**Size(bytes)**|**8**|**2**|**2**|1|1|1|2|2|4|2|2|4
--|**Value**|Device ID|Ver|BAT|Signal Strength|MOD|Interrupt|Soil PH|Soil Temperature|Time stamp|Soil Temperature|Soil PH|Time stamp  .....
++(% style="width:934px" %)
++|(% style="width:93px" %)**Size(bytes)**|(% style="width:82px" %)**8**|(% style="width:43px" %)**2**|(% style="width:41px" %)**2**|(% style="width:126px" %)**1**|(% style="width:54px" %)**1**|(% style="width:84px" %)1|(% style="width:75px" %)2|(% style="width:133px" %)2|(% style="width:70px" %)2|(% style="width:127px" %)4
++|(% style="width:93px" %)**Value**|(% style="width:82px" %)Device ID|(% style="width:43px" %)Ver|(% style="width:41px" %)BAT|(% style="width:126px" %)Signal Strength|(% style="width:54px" %)MOD|(% style="width:84px" %)Interrupt|(% style="width:75px" %)Soil PH|(% style="width:133px" %)Soil Temperature|(% style="width:70px" %)Soil PH|(% style="width:127px" %)Time stamp  .....
  If we use the MQTT client to subscribe to this MQTT topic, we can see the following information when the NSPH01 uplink data.
@@ -244,23 +244,24 @@
  The payload is ASCII string, representative same HEX:
--0x(% style="color:red" %)f868411056754138(% style="color:blue" %)0064(% style="color:green" %)0c78(% style="color:red" %)17(% style="color:blue" %)01(% style="color:green" %)00(% style="color:red" %)**//0225010b6315537b//**010b0226631550fb//**010e022663154d77**//01110225631549f1//**011502246315466b**//01190223631542e5//**011d022163153f62**//011e022163153bde//**011e022163153859**//(%%) where:
++0xf86841105675413800640c781701000225010b6315537b010b0226631550fb010e022663154d7701110225631549f1011502246315466b01190223631542e5011d022163153f62011e022163153bde011e022163153859 where:
--* (% style="color:red" %)Device ID: 0xf868411056754138 = f868411056754138
--* (% style="color:blue" %)Version: 0x0064=100=1.0.0
--* (% style="color:green" %)BAT: 0x0c78 = 3192 mV = 3.192V
--* (% style="color:red" %)Singal: 0x17 = 23
--* (% style="color:blue" %)Mod: 0x01 = 1
--* (% style="color:green" %)Interrupt: 0x00= 0
++* Device ID: 0xf868411056754138 = f868411056754138
++* Version: 0x0064=100=1.0.0
++
++* BAT: 0x0c78 = 3192 mV = 3.192V
++* Singal: 0x17 = 23
++* Mod: 0x01 = 1
++* Interrupt: 0x00= 0
  * Soil PH: 0x0225= 549 = 5.49
  * Soil Temperature:0x010B =267=26.7 °C
--* Time stamp : 0x6315537b =1662342011  ([[Unix Epoch Time>>url:http://www.epochconverter.com/]])
++* Time stamp : 0x6315537b =1662342011
  * Soil Temperature,Soil PH,Time stamp : 010b0226631550fb
--* (% style="color:red" %)8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,.......
++* 8 sets of recorded data: Temperature,Soil PH,Time stamp : 010e022663154d77,.......
--== 2.4  Payload Explanation and Sensor Interface ==
++**2.4  Payload Explanation and Sensor Interface**
--=== 2.4.1  Device ID ===
++**2.4.1  Device ID**
  By default, the Device ID equal to the last 15 bits of IMEI.
@@ -272,13 +272,13 @@
  The Device ID is stored in a none-erase area, Upgrade the firmware or run AT+FDR won't erase Device ID.
--=== 2.4.2  Version Info ===
++**2.4.2  Version Info**
  Specify the software version: 0x64=100, means firmware version 1.00.
  For example: 0x00 64 : this device is NSPH01 with firmware version 1.0.0.
--=== 2.4.3  Battery Info ===
++**2.4.3  Battery Info**
  Check the battery voltage for NSPH01.
@@ -286,7 +286,7 @@
  Ex2: 0x0B49 = 2889mV
--=== 2.4.4  Signal Strength ===
++**2.4.4  Signal Strength**
  NB-IoT Network signal Strength.
@@ -302,7 +302,7 @@
  **99**      Not known or not detectable
--=== 2.4.5  Soil PH ===
++**2.4.5  Soil PH**
  Get the PH content of the soil. The value range of the register is 300-1000(Decimal), divide this value by 100 to get the percentage of PH in the soil.
@@ -310,7 +310,7 @@
  **0229(H) = 549(D) /100 = 5.49.**
--=== 2.4.6  Soil Temperature ===
++**2.4.6  Soil Temperature**
  Get the temperature in the soil. The value range of the register is -4000 - +800(Decimal), divide this value by 100 to get the temperature in the soil. For example, if the data you get from the register is **__0x09 0xEC__**, the temperature content in the soil is
@@ -320,13 +320,13 @@
  If payload is FF7EH: ((FF7E & 0x8000)>>15 ===1),temp = (FF7E(H)-FFFF(H))/10 = -12.9 °C
--=== 2.4.7  Timestamp ===
++**2.4.7  Timestamp**
  Time stamp : 0x6315537b =1662342011
  Convert Unix timestamp to time 2022-9-5 9:40:11.
--=== 2.4.8  Digital Interrupt ===
++**2.4.8  Digital Interrupt**
  Digital Interrupt refers to pin **GPIO_EXTI**, and there are different trigger methods. When there is a trigger, the NSPH01 will send a packet to the server.
@@ -342,7 +342,7 @@
 x(01): Interrupt Uplink Packet.
--=== 2.4.9  +5V Output ===
++**2.4.9  +5V Output**
  NSPH01 will enable +5V output before all sampling and disable the +5v after all sampling.
@@ -353,9 +353,9 @@
  Means set 5V valid time to have 1000ms. So the real 5V output will actually have 1000ms + sampling time for other sensors.** **
--== 2.5  Downlink Payload ==
++**2.5  Downlink Payload**
--By default, NSPH01 prints the downlink payload to console port.
++By default, NSE01 prints the downlink payload to console port.
  (% style="text-align:center" %)
  [[image:image-20220907154636-17.png]]
@@ -378,13 +378,13 @@
  * **Reset**
--If payload = 0x04FF, it will reset the NSPH01
++If payload = 0x04FF, it will reset the NSE01
  * **INTMOD**
  Downlink Payload: 06000003, Set AT+INTMOD=3
--== 2.6  LED Indicator ==
++**2.6  LED Indicator**
  The NSPH01 has an internal LED which is to show the status of different state.
@@ -393,13 +393,13 @@
  * After NSPH01 join NB-IoT network. The LED will be ON for 3 seconds.
  * For each uplink probe, LED will be on for 500ms.
--== 2.7 Installation and Maintain ==
++**2.7 Installation and Maintain**
--=== 2.7.1 Before measurement ===
++**2.7.1 Before measurement**
  If the NSPH01 has more than 7 days not use or just clean the pH probe. User should put the probe inside pure water for more than 24 hours for activation. If no put in water, user need to put inside soil for more than 24 hours to ensure the measurement accuracy.
--=== 2.7.2 Measurement ===
++**2.7.2 Measurement**
  **Measurement the soil surface:**
@@ -419,7 +419,7 @@
  Insert the probe inside, method like measure the surface.
--=== 2.7.3 Maintain Probe ===
++**2.7.3 Maintain Probe**
 . pH probe electrode is fragile and no strong. User must avoid strong force or hitting it.
 . After long time use (3~~ 6  months). The probe electrode needs to be clean; user can use high grade sandpaper to polish it or put in 5% hydrochloric acid for several minutes. After the metal probe looks like new, user can use pure water to wash it.
@@ -428,7 +428,7 @@
 . Avoid the probes to touch oily matter. Which will cause issue in accuracy.
 . The probe is IP68 can be put in water.
--== 2.8 PH and Temperature alarm function ==
++**2.8 PH and Temperature alarm function**
  ➢ AT Command:
@@ -442,7 +442,7 @@
  Example:
--AT+ PHALARM =5,8 ~/~/ Alarm when PH lower than 5.
++AT+ PHALARM =3,5 ~/~/ Alarm when PH lower than 5.
  AT+ TEMPALARM=min,max
@@ -454,20 +454,20 @@
  Example:
--AT+ TEMPALARM=20,30 ~/~/ Alarm when temperature lower than 20.
++AT+ TEMPALARM=0,20 ~/~/ Alarm when temperature lower than 20.
--== 2.9 Set the number of data to be uploaded and the recording time ==
++**2.9 Set the number of data to be uploaded and the recording time**
  ➢ AT Command:
  AT+TR=900  ~/~/The unit is seconds, and the default is to record data once every 900 seconds.( The minimum can be set to 180 seconds)
++
  AT+NOUD=8  ~/~/The device uploads 8 sets of recorded data by default. Up to 32 sets of record data can be uploaded.
++**2.10 Read or Clear cached data**
--== 2.10 Read or Clear cached data ==
--
  ➢ AT Command:
  AT+CDP    ~/~/ Read cached data
@@ -478,7 +478,7 @@
  AT+CDP=0    ~/~/ Clear cached data
--== 2.11 Calibration ==
++**2.11 Calibration**
  User can do calibration for the probe. It is limited to use below pH buffer solution to calibrate: 4.00, 6.86, 9.18. When calibration, user need to clean the electrode and put the probe in the pH buffer solution to wait the value stable ( a new clean electrode might need max 24 hours to be stable).
@@ -486,21 +486,21 @@
  [[image:image-20220907154700-20.png]]
--== 2.12  Firmware Change Log ==
++**2.8  Firmware Change Log**
  Download URL & Firmware Change log: [[https:~~/~~/www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0>>url:https://www.dropbox.com/sh/1zmcakvbkf24f8x/AACmq2dZ3iRB9F1nVWeEB9Moa?dl=0]]
  Upgrade Instruction: [[Upgrade Firmware>>path:#H5.1200BHowtoUpgradeFirmware]]
--== 2.13  Battery Analysis ==
++**2.9  Battery Analysis**
--=== 2.13.1  Battery Type ===
++**2.9.1  Battery Type**
  The NSPH01 battery is a combination of an 8500mAh Li/SOCI2 Battery and a Super Capacitor. The battery is none-rechargeable battery type with a low discharge rate (<2% per year). This type of battery is commonly used in IoT devices such as water meter.
  The battery is designed to last for several years depends on the actually use environment and update interval.
--The battery-related documents as below:
++The battery related documents as below:
  * [[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
  * [[Lithium-Thionyl Chloride Battery datasheet>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]
@@ -508,7 +508,7 @@
  [[image:image-20220907154700-21.png]]
--=== 2.13.2  Power consumption Analyze ===
++**2.9.2  Power consumption Analyze**
  Dragino battery powered product are all runs in Low Power mode. We have an update battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit interval.
@@ -529,15 +529,15 @@
--=== 2.13.3  Battery Note ===
++**2.9.3  Battery Note**
  The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
--=== 2.13.4  Replace the battery ===
++**2.9.4  Replace the battery**
  The default battery pack of NSPH01 includes a ER26500 plus super capacitor. If user can't find this pack locally, they can find ER26500 or equivalence without the SPC1520 capacitor, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes).
--= 3.  Access NB-IoT Module =
++**3.  Access NB-IoT Module**
  Users can directly access the AT command set of the NB-IoT module.
@@ -548,9 +548,9 @@
--= 4.  Using the AT Commands =
++**4.  Using the AT Commands**
--== 4.1  Access AT Commands ==
++**4.1  Access AT Commands**
  See this link for detail:  [[https:~~/~~/www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0>>url:https://www.dropbox.com/sh/351dwor6joz8nwh/AADn1BQaAAxLF_QMyU8NkW47a?dl=0]]
@@ -588,18 +588,13 @@
  AT+TR      : Get or Set record time"
--AT+APN            : Get or set the APN
--AT+FBAND          : Get or Set whether to automatically modify the frequency band
--
--AT+DNSCFG         :  Get or Set DNS Server
--
--AT+GETSENSORVALUE   : Returns the current sensor measurement
--
  AT+NOUD      : Get or Set the number of data to be uploaded
++
  AT+CDP     : Read or Clear cached data
++
  AT+TEMPALARM      : Get or Set alarm of temp
  AT+PHALARM     : Get or Set alarm of PH
@@ -633,9 +633,9 @@
  AT+PWORD       : Serial Access Password
--= 5.  FAQ =
++**5.  FAQ**
--== 5.1  How to Upgrade Firmware ==
++**5.1  How to Upgrade Firmware**
  User can upgrade the firmware for 1) bug fix, 2) new feature release.
@@ -643,29 +643,29 @@
  **Notice, **NSPH01 **and **NSPH01 **share the same mother board. They use the same connection and method to update.**
--== 5.2  Can I calibrate NSPH01 to different soil types? ==
++**5.2  Can I calibrate NSPH01 to different soil types?**
  NSPH01 is calibrated for saline-alkali soil and loamy soil. If users want to use it for other soil, they can calibrate the value in the IoT platform base on the value measured by saline-alkali soil and loamy soil. The formula can be found at [[this link>>url:https://www.dragino.com/downloads/downloads/LoRa_End_Node/LSE01/Calibrate_to_other_Soil_20220605.pdf]].
--= 6.  Trouble Shooting =
++**6.  Trouble Shooting**
--== 6.1  Connection problem when uploading firmware ==
++**6.1  Connection problem when uploading firmware**
  **Please see: **[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H3.3Troubleshooting]]
--== 6.2  AT Command input doesn't work ==
++**6.2  AT Command input doesn't work**
  In the case if user can see the console output but can't type input to the device. Please check if you already include the **ENTER** while sending out the command. Some serial tool doesn't send **ENTER** while press the send key, user need to add ENTER in their string.
--= 7.  Order Info =
++**7.  Order Info**
  Part Number**:** NSPH01
--= 8.  Packing Info =
++**8.  Packing Info**
  **Package Includes**:
--* NSPH01 NB-IoT pH Sensor x 1
++* NSPH01 NB-IoT Soil Moisture & EC Sensor x 1
  * External antenna x 1
  **Dimension and weight**:
@@ -673,7 +673,7 @@
  * Size: 195 x 125 x 55 mm
  * Weight:   420g
--= 9.  Support =
++**9.  Support**
  * Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
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