Air302 NB-IOT модуль + GPRS

[nikolz]

Вместо SIM800 лучше использовать Air302 Module NB-IoT B1 B3 B5 B8:

https://aliexpress.ru/item/1005002899331810.html?mp=1&sku_id=12000022677089826&spm=a2g0o.cart.0.0.3a273c0057udNH

 

[enjoynering]

инфа по Air302 на китайском.

 

[fps]

инфа по Air302 на китайском.

Дожили.
Новый международный технический язык

 

[nikolz]

инфа по Air302 на китайском.

Air302 имеет встроенную VMLua.
можно писать на луа и грузить скрипты как в ESP8266 на lua
--------------------------------
Вот пример MQTT:
-- LuaTools
PROJECT = "mqttairm2m"
VERSION = "1.0.0"
_G.sys = require("sys")
local mqtt = require "mqtt"
sys.taskInit(function()
local host, port, selfid = "lbsmqtt.airm2m.com", 1884, nbiot.imei()
while true do
while not socket.isReady() do
log.info("net", "wait for network ready")
sys.waitUntil("NET_READY", 1000)
end
log.info("main", "Airm2m mqtt loop")

local mqttc = mqtt.client(selfid, nil, nil, false)
while not mqttc:connect(host, port) do sys.wait(2000) end
local topic_req = string.format("/device/%s/req", selfid)
local topic_report = string.format("/device/%s/report", selfid)
local topic_resp = string.format("/device/%s/resp", selfid)
log.info("mqttc", "mqtt seem ok", "try subscribe", topic_req)
if mqttc:subscribe(topic_req) then
log.info("mqttc", "mqtt subscribe ok", "try publish")
if mqttc _ublish(topic_report, "test publish " .. os.date() .. crypto.md5("12345"), 1) then
while true do
log.info("mqttc", "wait for new msg")
local r, data, param = mqttc:receive(120000, "pub_msg")
log.info("mqttc", "mqttc:receive", r, data, param)
if r then
log.info("mqttc", "get message from server", data.payload or "nil", data.topic)
elseif data == "pub_msg" then
log.info("mqttc", "send message to server", data, param)
mqttc_ublish(topic_resp, "response " .. param)
elseif data == "timeout" then
log.info("mqttc", "wait timeout, send custom report")
mqttc_ublish(topic_report, "test publish " .. os.date() .. nbiot.imei())
else
log.info("mqttc", "ok, something happen", "close connetion")
break
end
end
end
end
mqttc:disconnect()
sys.wait(5000)
end
end)
sys.run()
----------------------------

 

[nikolz]

исходники VMLua
LuatOS : Мощный встроенный движок Lua для устройств интернета вещей,
со множеством компонентов и низкими требованиями к памяти (16 Кб оперативной памяти, 128 Кб флэш-памяти)
Air101/Air103/Air105/ESP32C3
-----------------------------

GitHub - openLuat/LuatOS: LuatOS -- Powerful embedded Lua Engine for IoT devices, with many components and low memory requirements (16K RAM, 128K Flash)

LuatOS -- Powerful embedded Lua Engine for IoT devices, with many components and low memory requirements (16K RAM, 128K Flash) - openLuat/LuatOS

github.com

 

[Сергей_Ф]

Модуль на Али

474,69 руб. 21%СКИДКА | Плата разработки Air302 Module NB-IoT B1 B3 B5 B8, совместимая с поддержкой GPRS UART,SPI,I2C

https://a.aliexpress.com/_9jK3n9

 

[enjoynering]

еще накидаю rкитайских GPRS:
- Air208
- WIS800C
- A6 (часто зовут GA6)
- M590E
- ну и наш герой Air302

теперь бы понять кто из них лучший/худший и почему

 

[nikolz]

еще накидаю rкитайских GPRS:
- Air208
- WIS800C
- A6 (часто зовут GA6)
- M590E
- ну и наш герой Air302

теперь бы понять кто из них лучший/худший и почему

Air302 - это фактически ESP32С3 , но с протоколом NB-Iot вместо Wifi. Т е Вы работаете сразу через сотового оператора без использования проводного интернет или роутеров Wifi.
-----------------
Большинство указанных Вами модулей лишь модули связи на уровне AT команд с закрытыми прошивками.
Т е к ним надо еще довешивать микроконтроллер.
Ну и потребление у них не хилое.

 

[nikolz]

вот еще варианты на том же чипе что и Air302

 

[nikolz]

и еще для затравки.
В отличии от BLE -смартфон, NB-Iot может спать до 440 дней (ток потребления менее 1 мкА ),
оставаясь подключенным к оператору и передавая когда надо данные не выполняя подключения и без заголовков(режим non-IP).

 

[nikolz]

характеристики чипа EC616s

• processor Cortex-M3, supportMPU, Configurable CPU frequency, up to204MHz, 8-channel DMA memory
• 4MB on-chip NOR flash,272KB on-wafer SRAM, divided into 256KB, and 16KB two blocks 16KB instructions cache

- Flexible configuration supports 1.8/2.8/3.3V IO

• Clock source: 26MHz TCXO or DCXO, 32.768KHz crystal oscillator
• 1 external wake-up source (interrupt)
• UniqueMCU mode, in which the internal

RC oscillator as clock for lower power consumption

• LOG port, UNILOG
• Debug port, SWD
• Peripherals
• 16 GPIO, 3 UART, 2 SSP, 2 I2C
• 6 PWM, 6 Timers, 6 GPIO counters, 1 WDG
• 32KHz RTC timer
• USIM, supports Esim
• LPUART
• 4 channels 12-bitAUXADC
• Temperature Sensor
• Battery voltage monitoring
• Low power consumption
• Unique low-power architecture, 4-level sleep mode
• PSM: 800nA

- DRX(2.56s): Typical 110uA

• RX: Typical 10mA
• TX: Typical 24mA
• communication
• fully support3GPP R14 NB-IoT
• Category NB2, 2-HARQ
• Multi-tone NPUSCH
• Anchor and non-anchor carriers
• In-band same/different PCI, guard-band, standalone
• Multi-carrier paging, NPRACH
• Positioning: OTDOA & ECID
• ROHC, RAI, multiple-DRB, RRC connection re-establish
• - SC-PTM (need SW upgrade)
• radio frequency

- Supported Bands: 1, 2, 3, 4, 5, 8, 18, 19, 20,25, 26, 66, 70

• chip integrationPA, support APT function
• Chip integrated RF transceiver filter and antenna switch
• power level3
• Safety
• Hardware encryption and decryption module (AES, SHA)
• Secure boot
• flash encryption
• True random number generator
• application
• Support open-CPU
• software conformsCMSIS Architecture
• Support mainstream cloud services
• IPv4, IPv6 and non-IP
• UDP,TCP
• DTLS, TLS, SSL
• MQTT, CoAP, HTTP(S)
• LWM2M
• support FOTA
• package
• Voltage range: 2.2V to 4.5V
• SoC

The processor subsystem uses a single-core architecture, i.e., both protocol software and application software run on a single on the CPU

• CPU adopts ARM Cortex-M3, supports frequency 204M/102M/26M
• 8-entry MPU
• 8-channel DMA
• 16KB cache
• 256KB Large SRAM and 16KB small SRAM, different low-power modes can keep different SRAM content to achieve the lowest sleep power consumption
• 4MB on-chip NOR flash
• Hardware encryption and decryption module
• hardwarelog module, can output log through UART and SSP
• 8 NVIC interrupt ports, two 32-port secondary interrupt controllers (XICs)

Communication subsystem includes The baseband hardware, radio frequency and protocol software of NB-IoT are characterized as follows:

• fully support3GPP R14 NB-IoT standard
• Support global frequency bands
• supportCategory NB2, Max TBS = 2536
• support 2-HARQ, combined with CAT-NB2, the data throughput rate is 5 times higher than that of CAT-NB1
• Support Multi-tone NPUSCH, support 1/3/6/12 subcarriers
• supportAnchor and non-anchor carriers
• Support In-band same/different PCI, guard-band, standalone network deployment
• Support Multi-carrier paging and Multi-carrier NPRACH
• Positioning: OTDOA & ECID
• Others: ROHC, RAI, multiple-DRB, RRC connection re-establish
• support SC-PTM (software upgrade required)

Peripherals include:

• maximum support 16 GPIO
• maximum support 6 GPIOs with input count
• maximum support 3 UARTs
• maximum support 2 SSPs
• maximum support 2 I2C
• maximum support 6 PWM, 6 Timer
• 1 WDG
• supportUSIM and eSIM
• Support low power UART
• 4-channel 12-bit AUXADC
• Temperature Sensor
• Battery voltage monitoring