distributors products IoT, security, monitoring and automation equipment LTE CATM + NB IoT development kits the alphabet project IoT product(s) of week buy online our products a-gsmII shield b-gsmgnss shield a-gsm shield c-uGSM shield (micro) d-u3G shield (micro) f-audioOutputs adapter g-SPS family i-hat adapter for RaspberryPI j-328 adapter for Arduino micro/nano h-nanoGSM shield (nano) l-LTE 4G shield (modular) s-Sense sensors (I2C interface) **HOT** u-GSM CAT M1/NB IoT/LTE/3G/GSM shield **NEW** xyz-mIoT integrated sensors IOT shield **NEW** PROJECTS and TUTORIALS for IoT modems and IoT shields [LTE CATM1, NBIoT, 4G, 3G, GSM],GNSS and SENSORS DOWNLOADS FAQ itbrainpower.net LTE CATM1, NB IoT, 4G, 3G, 2G GSM shields frequent ask question (FAQ) section Read our last post: Modems and RaspberryPI 5. RaspberryPI OS [Debian 12 bookworm] notes.. Order u-GSM modems.
go back to FAQ TOC UART INTERFACING AVOID COMMON ERRORS Serial [UART] wiring info related Step 1: All itbrainpower.net modular modem shield type (c-uGSM, h-nanoGSM, d-u3G or l-LTE) and second generation modular modems (u-GSM familly) share the same ITBPMM interface. First of all, identify on your itbrainpower.net modular modem following signal pads: - RX(TXD) - named bellow MDM-TXD - TX(RXD) - named bellow MDM-RXD and - GND - named bellow MDM-GND Right image - c-uGSM shield. Step 2: Identify on your micro-controller (or, let's say USB UART adapter, if you connect it with third USB UART adapter) the following pins: - TX - named bellow uCTRL-TX - RX - named bellow uCTRL-RX and - GND - named bellow uCTRL-GND Step 3: Cable the wire as described bellow: - MDM-TXD goes to uCTRL-RX - MDM-RXD goes to uCTRL-TX and - MDM-GND goes to uCTRL-GND DONE! Serial [UART] supported interfacing voltages. It is Arduino 3.3V only shields direct interfacing possible? UART and other CONTROL [POWER and RESET] and STATUS signals on itbrainpower modems supports: - a-gsm, a-gsmII, b-gsmgnss, c-uGSM and h-nanoGSM - 2.8V up to 5V, auto select - d-u3G and l-LTE - 3.3V up to 5V, auto select - u-GSM equipped with M95FA or BC95G - 2.8V up to 5V, auto select - u-GSM equipped with BG96, EG95E, EG95A, EG91E, EG91A, UG95E or UG96 - 3.3V up to 5V, auto select YES, interfacing of any itbrainpower.net modems [full-size or modular] with 3.3V only Arduino shields [same as Teensy or Raspberry PI or Beagle Bone Black boards, others..] can be made WITHOUT need for level convertor boards. Serial [UART] speed info related. Choose the proper UART speed. Full size modems are shipped with following default speeds [in brackets, supported speeds]: - a-gsm - autobaud, 8N1 [4800, 9600, 19200, 38400, 57600 and 115200] - a-gsmII - autobaud, 8N1 [4800, 9600, 19200, 38400, 57600 and 115200] - b-gsmgnss - autobaud, 8N1 [4800, 9600, 19200, 38400, 57600 and 115200] Modular modems are shipped with following default speeds [in brackets, supported speeds]: - c-uGSM - autobaud, 8N1 [4800, 9600, 19200, 38400, 57600 and 115200] - h-nanoGSM - autobaud, 8N1 [4800, 9600, 19200, 38400, 57600 and 115200] - d-u3G - autobaud, 8N1 [4800, 9600, 19200, 38400, 57600 and 115200 + 230400, 460800, 921600] - l-LTE - 115200bps, 8N1 [4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600 and 3000000bps] Second generation modular modems (u-GSM familly - see part numbers) have following default speeds [in brackets, supported speeds]: - u-GSM equipped with Quectel BG96 PN: UGSM219-BG96#xxx - 115200bps, 8N1 [4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800 and 921600] - u-GSM equipped with Quectel BC95G PN: UGSM219-BC95G#xxx - autobaud, 8N1 [4800, 9600, 19200, 38400, 57600 and 115200] - u-GSM equipped with Quectel EG95E PN: UGSM219-EG95E#xxx - 115200bps, 8N1 [4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800 and 921600] - u-GSM equipped with Quectel EG95A PN: UGSM219-EG95A#xxx - 115200bps, 8N1 [4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800 and 921600] - u-GSM equipped with Quectel EG91E PN: UGSM219-EG91E#xxx - 115200bps, 8N1 [4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800 and 921600] - u-GSM equipped with Quectel EG91A PN: UGSM219-EG91A#xxx - 115200bps, 8N1 [4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800 and 921600] - u-GSM equipped with Quectel UG96 PN: UGSM219-UG96#xxx - autobaud, 8N1 [4800, 9600, 19200, 38400, 57600 and 115200] - u-GSM equipped with Quectel UG95E PN: UGSM219-UG95E#xxx - autobaud, 8N1 [4800, 9600, 19200, 38400, 57600 and 115200] - u-GSM equipped with Quectel M95FA PN: UGSM219-M95FA#xxx - autobaud, 8N1 [4800, 9600, 19200, 38400, 57600 and 115200] xxx part number suffix can be UFL or SMA. Recommended speed for Arduino (and other slow ucontrollers) / RPI, BBB or fast ucontrollers / PPP: - a-gsm, a-gsmII, b-gsmgnss, c-uGSM and h-nanoGSM - 9600 bps, 19200 bps / 115200 bps - d-u3G - 9600 bps, 19200 bps / 921600 bps - l-LTE - 9600 bps, 19200 bps / 921600 bps - u-GSM equipped with BG96, EG95E, EG95A, EG91E, EG91A - 9600 bps, 19200 bps / 921600 bps - u-GSM equipped with M95FA, UG95E, UG96 - 9600 bps, 19200 bps / 115200 bps - u-GSM equipped with BC95G - 9600 bps, 9600 bps / not supported Settings in Arduino demo software related to serial [UART]. Check for "usejLader" define in our published Arduino demo software . If you connect your modular modem using "j-328GSM3GLader - Arduino Micro / Arduino Mini / Arduino Nano adapter board" be sure the: #define usejLader compiling directive it is NOT COMMENTED. If you do not use "j-328GSM3GLader adapter" make sure the: #define usejLader compiling directive it is COMMENTED. go back to FAQ TOC this tutorial was written by Dragos Iosub.
the alphabet :   order online a-gsmII shield [new] b-gsmgnss shield [new] a-gsm shield c-uGSM shield (micro) d-u3G shield (micro) f-audioOutputs adapter g-SPS boards i-hatGSM3G adapter j-328GSM3GLader adapter h-nanoGSM shield (nano) l-LTE shield s-Sense sensor breakout boards [HOT] u-GSM shield - CAT M1 / NB IoT / LTE [newest] xyz-mIoT integrated sensors IOT shield [newest] IoT product of week featured product [STRATUM1 NTP server] DOWNLOADS FAQs
Security, automation, monitoring, IoT and special purpose equipments: STRATUM 1 NTP server GNSS syncronized SMS gateway with parallel processing Temp., hum. and more monitor w. SMS alarm Development kits: LTE CATM + NB IoT development kit(s) Arduino and Raspberry PI how-to and tutorials hottest project newest project newest hardware how to newest software tutorial view all tutorials BME688 Arduino how to CCS811 Arduino how to HDC2010 Arduino how to BME680 Arduino how to BME280 Arduino how to BMP280 Arduino how to CCS811 RPI how to HDC2010 RPI how to BME680 RPI how to BME280 RPI how to BMP280 RPI how to  Covid19 related resources: ZOOM speaker (w. Arduino shield and a-gsmII) - covid19 response help for elderly peoples PARP purified air flow controller for 12VDC blowers powered from 5V LiION power bank temperature, humidity and pressure sensor temperature and pressure sensor BME280 Arduino how to BMP280 Arduino how to BME280 RPI how to BMP280 RPI how to our environmental and air quality sensor breakouts: OPT3002 BME688 CCS811 + HDC2010 combo BME680 CCS811 BME280 BMP280 HDC2010
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document version 0.91 / 2019-04-05	© R&D Software Solutions srl