Board-dat/STH/STH1042-dat/STH1042-dat.md
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+
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+# STH1042-dat
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+
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+legacy wiki page - https://w.electrodragon.com/w/MQ_series
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+
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+- [[MQ-series-dat]] - [[MQ-2-dat]]
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+
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+
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+## ref
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+
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+- [[STH1042]]
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Board-dat/STH/STH1043-dat/STH1043-dat.md
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+
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+# STH1043-dat
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+
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+legacy wiki page - https://w.electrodragon.com/w/MQ_series
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+
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+- [[MQ-series-dat]] - [[MQ-3-dat]]
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+
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+
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+## ref
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+
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+- [[STH1043]]
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Board-dat/STH/STH1044-dat/STH1044-dat.md
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+
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+# STH1044-dat
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+
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+legacy wiki page - https://w.electrodragon.com/w/MQ_series
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+
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+- [[MQ-series-dat]] - [[MQ-5-dat]]
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+
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+
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+## ref
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+
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+- [[STH1044]]
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Chip-cn-dat/SIMCOM-dat/SIM7028-dat/SIM7028-dat.md
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- [[SIM7028-dat]] will be a successor of module [[SIM7020-dat]]
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+
15 16
## Product advantages
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17 18
- Low power consumption: The module supports PSM low power mode. Theoretically, two No. 5 batteries can support 10 years
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19 20
- Wide coverage: Compared with GSM, NB-IoT has a strong gain and a wide signal coverage, which also enables the product to have wireless communication capabilities in locations such as basements
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-## Compare to the decedent SIM7020
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-- [[SIM7020-dat]]
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+## Chip Features Overview
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+
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+- Power supply Power supply voltage：2.2V～4.3V.
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+- Power saving
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+ - DRX:0.11mA (DRX=2.56s)
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+ - eDRX:0.018mA (PTW=25.6s；eDRX=163.84s；DRX=2.56s)
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+ - PSM mode Typical: 0.8uA
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+- Radio frequency bands Please refer to the table 1
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+- Transmitting power LTE power class: 3 (23dBm±2.7dB)
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+- Data Transmission Throughput
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+ - LTE CAT NB2: 127Kbps (DL).
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+ - LTE CAT NB2: 159Kbps (UL).
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+- Antenna LTE main antenna.
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+- SIM interface Support identity card: 1.8V/3V.
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+- UART1 interface
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+ - A full modem serial port by default
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+ - Can be used as the AT commands
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+ - Can be used for firmware upgrade and RF calibration
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+ - Baud rate: default:115200bps
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+- UART0 Software debugging and debugging log output. The default baud rate is 3Mbps.
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+- Firmware upgrade Firmware upgrade over UART1 interface
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+- Physical characteristics
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+ - Size: 17.6mm×15.7mm×2.3 mm
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+ - Weight: 1.3g±0.2g
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+- Temperature range
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+ - operation temperature: -40°C to +85°C
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+ - Storage temperature: -45°C to +90°C
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+- Note: When VBAT is lower than 3V, the radio frequency can work but the performance of some indicators
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+may not meet the 3GPP standard.
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+
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+## Hardware Interface Overview
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+
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+The interfaces are described in detail in the next chapters include:
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+- ● Power Supply
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+- ● UART Interface
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+- ● SIM Interface
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+- ● ADC
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+- ● Power Output
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+- ● GPIOs
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+- ● Antenna Interface
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+
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+
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+
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25 67
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+## Compare to the decedent SIM7020
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+
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+compare to [[SIM7020-dat]]
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+- no I2C, SPI
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+- USB in progress, early version
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+- extra IO_1833_sel
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| **Feature** | **SIM7028** | **SIM7020** |
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|----------------------------|---------------------------------------------------------------------------|-----------------------------------------------------------|
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| **Market Availability** | More expensive but offers broader coverage | Lower cost and tailored for NB-IoT-only markets |
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| **Data Rate Comparison** | Higher data rates (Cat M1 and 2G support) | Lower data rates (NB-IoT only) |
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+![](2025-01-18-14-40-49.png)
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## Diagram
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![](2025-01-18-14-37-42.png)
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51 100
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-### Comparison
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-
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-compare to [[SIM7020-dat]]
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-- no I2C, SPI
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-- USB in progress, early version
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-- extra IO_1833_sel
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-
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-![](2025-01-18-14-40-49.png)
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-
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## AT Commands Log
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Tech-dat/Sensor-dat/gas-sensor-dat/MQ-series-dat/MQ-2-dat/MQ-2-dat.md
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+
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+# MQ-2-dat
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+
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+- datasheet - [[MQ-2.pdf]]
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Tech-dat/Sensor-dat/gas-sensor-dat/MQ-series-dat/MQ-2-dat/MQ-2.pdf
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Tech-dat/Sensor-dat/gas-sensor-dat/MQ-series-dat/MQ-3-dat/MQ-3-dat.md
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+# MQ-2-dat
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+
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+- datasheet - [[MQ-3.pdf]]
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Tech-dat/Sensor-dat/gas-sensor-dat/MQ-series-dat/MQ-3-dat/MQ-3.pdf
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Tech-dat/Sensor-dat/gas-sensor-dat/MQ-series-dat/MQ-5-dat/MQ-5-dat.md
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+
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+# MQ-2-dat
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+
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+- wiki page - https://en.wikipedia.org/wiki/Blood_alcohol_content
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+
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+- datasheet - [[MQ-5.pdf]]
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Tech-dat/Sensor-dat/gas-sensor-dat/MQ-series-dat/MQ-5-dat/MQ-5.pdf
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Tech-dat/Sensor-dat/gas-sensor-dat/MQ-series-dat/MQ-series-dat.md
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+
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+# MQ-series-dat
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+
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+
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+* You can use arduino default "analogread" example to read the analog value from the sensor
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+
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+
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+* [Wiring Example](http://wiring.org.co/learning/basics/airqualitymq135.html)
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+* [Arduino Breathalyzer](http://www.danielandrade.net/2010/03/07/building-an-breathalyzer-with-mq-3-and-arduino/)
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+* [Another Breathalyzer Design](http://nootropicdesign.com/projectlab/2010/09/17/arduino-breathalyzer/)
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+
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+
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+
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+- [[MQ-2-dat]] - [[STH1042-dat]]
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+
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+- [[MQ-3-dat]] - [[STH1043-dat]]
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+
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+- [[MQ-5-dat]] - [[STH1044-dat]]
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+
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+
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+
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+## ref
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+
24
+### obseleted
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+
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+* [Arduino Tutorial in Portuguese](http://lusorobotica.com/index.php/topic,111.0.html)
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