Nordic 9151 NB-IoT MQTT Test

@amelectronics

I’m an Embedded Systems Engineer with hands-on experience in Nordic Semiconductor platforms, Zephyr RTOS, NB-IoT/LTE-M connectivity, and MQTT-based IoT deployments. I can help you get your Nordic nRF9151 DK fully operational and reliably publishing live sensor data to your Mosquitto broker over NB-IoT.

@mzdesmag

Hello sir, Did go through your job description and glad to share that I have enormous experience in working with Nordic 9151 NB-IoT MQTT Test I'm a seasoned programmer and Engineer with quality experience in Flutter, React, Node.JS, SpringBoot, Frontend and Backend Development, Python, Matlab, R studio, C, C++, C#, OpenCV, OpenGL, Tesseract OCR, google vision, Statisticaal programming/R progamming data analysis Computing for Data Analysis Time Series & Econometric, Machine learning, AI, Deep learning, Matlab and Mathematica, 3D modeling, CAD/CAM,AutoCAD, 2D, Architectural Engineering, SolidWorks, Unity 3D, PCB, Electronics, Arduino, Automation, Embedded and Firmware , IOT, Electrical/Mechanical Engineering I am a TOP Rated Freelancer, and you can check my reviews here as well: https://www.freelancer.com/u/mzdesmag. Looking forward to potentially working together on this project. Thanks and Best regards, Adekunle.

@Webslinger01

I’ve been building embedded systems for over a decade, and this MQTT test setup for Nordic hardware is straightforward work for me. I’ve shipped production firmware on nRF52840 and nRF52832 across multiple projects, including a smart golf ball with BLE mesh and a sports wearable, both of which relied on reliable MQTT communication. I can set up your test environment, configure the broker, write the firmware-side MQTT client, and create the test scripts to validate publish/subscribe, QoS levels, and reconnection behavior. I’ll deliver a clean, documented setup that you can reuse. Let me know your timeline and I’ll get started.

@CyberSasu

As a seasoned Embedded Systems Developer, IoT Engineer, and an avid tinkerer, I can assure you of my comprehensive understanding not just of the nRF9151 DK, but also MQTT, NB-IoT, Mosquitto broker, and Zephyr/Nordic SDK. Your project aligns perfectly with my skill set and my penchant for creating scalable and reliable solutions. Leveraging my expertise in BLE, LoRa, USB, RS232, I2C, SIM800L and 4G communication I will efficiently configure the NB-IoT link on the nRF9151 DK as well as create a lightweight firmware essential to push raw readings from your temperature and humidity sensors to your specific Mosquitto topic. I appreciate that all interaction will occur remotely; thus either providing concise instructions or leading our work through a short live session is no inconvenience. In the spirit of openness and clarity so important in this project, rest assured that all source codes and configuration files shall be promptly delivered with detailed comments.

@soniaer987

I read through your project and it immediately caught my attention because I actually enjoy digging into MQTT protocol behavior on Nordic hardware. I have 6 years of hands-on experience working with nRF52 series chips, and I've spent a fair amount of time testing edge cases like packet loss, reconnection storms, and QoS level transitions. I recently finished a project where I built a custom test harness for an nRF52840-based sensor node that needed to maintain a persistent MQTT connection over an unstable WiFi link, which feels very close to what you're describing. I'm comfortable setting up Mosquitto brokers, writing test scripts in Python, and documenting every failure mode I find. I'd love to take this on and give you a thorough, reliable test report that helps you ship with confidence.

@ThynkLoop

Hi, I can help you configure and validate the Nordic nRF9151 DK for NB-IoT-based MQTT publishing with reliable sensor data transmission to your Mosquitto broker. I have experience with Nordic nRF series development, Zephyr/Nordic SDK firmware, MQTT integration, cellular IoT systems, and embedded sensor communication. I can provide a stable and lightweight firmware solution with auto-reconnect handling and clear setup documentation for remote validation. > Proposed Approach: NB-IoT Configuration * SIM and modem setup * APN and network attachment configuration * Stable NB-IoT connectivity validation MQTT Integration * Mosquitto broker communication * Real-time sensor publishing * Automatic reconnect handling on network drops Firmware Development * Lightweight Zephyr/Nordic SDK firmware * Temperature and humidity sensor integration * Configurable publish intervals Remote Support & Validation * Flashing and setup instructions * Remote/live validation support * MQTT transmission verification logs > Deliverables: * Source code * Configuration files * Setup and flashing guide * MQTT broker setup notes * Validation/demo logs

@letswork92

I understand that you’re looking to efficiently utilize your Nordic nRF9151 development kit for seamless data transmission to a Mosquitto broker without unnecessary processing. This is essential for ensuring real-time updates of temperature and humidity readings. With over 12 years of experience in full-stack development and mobile app automation, I am well-versed in configuring NB-IoT connections and developing lightweight firmware using Nordic SDK or Zephyr. I'll ensure that the onboard sensors are accurately read and published to your specified Mosquitto topic at regular intervals. Additionally, I will provide clear instructions for modem/SIM setup and broker credentials while demonstrating the complete end-to-end transmission process. You can expect all source code along with concise comments for clarity. To ensure optimal performance, how frequently do you wish to receive updates from the sensors?

@AhmedHe22

Hello, I’m an embedded firmware engineer with hands-on experience working with Nordic Semiconductor devices, especially the nRF52 series. I’ve developed multiple IoT and sensor-based projects involving BLE communication, MQTT data transmission, I2C/TWI sensor integration, and real-time embedded firmware development. Some of my recent work includes: Developing firmware on the PAN1780 (nRF52840) platform Integrating sensors such as the MPU9250 and streaming real-time data Building IoT systems that publish sensor data to MQTT brokers Working with embedded communication, reconnect handling, and low-level drivers For your project, I can configure the nRF9151 DK for NB-IoT connectivity, develop the firmware using nRF Connect SDK / Zephyr. Additionally, I will ensure reliable real-time sensor data transmission, stable NB-IoT and MQTT connectivity with automatic reconnection handling, and deliver clean, well-structured code with clear documentation for easy deployment and future maintenance.

@Tarun1143

I can handle the firmware integration and MQTT/NB-IoT workflow for the nRF9151 DK. Before starting, I’ll need: * sensor details * SIM/operator info * MQTT broker credentials * preferred publish interval Once those are confirmed, I can deliver the firmware, configuration steps, and end-to-end verification logs.

@manishkumawat14

I have strong embedded C and RTOS firmware experience with hands-on background in I²C sensor integration, interrupt-driven data pipelines, and UART debugging — skills that map directly to this project. I work within Zephyr/Nordic NCS and will deliver complete, commented firmware for the nRF9151 DK that reads your onboard temperature and humidity sensors and publishes to your Mosquitto broker over NB-IoT at a configurable interval. My delivery will include full source code with a Zephyr project structure, modem initialization and NB-IoT link configuration, MQTT client setup with your broker credentials, auto-reconnect logic for network drops, and clear flash + verify instructions so you can replicate the build independently. All files will be commented for your firmware team to follow easily. Before we begin I'll need your SIM APN details, broker IP/port, and topic structure — this keeps bring-up smooth and avoids back-and-forth delays. I can share a terminal log confirming end-to-end transmission as part of acceptance. If you have any questions about the sensor interface or modem setup before awarding, happy to discuss. Let's get your readings flowing.

@zeelm45

Hi, This is well within my scope. I have experience with Nordic cellular devices, Zephyr/Nordic SDK development, MQTT over NB-IoT/LTE-M, and sensor data acquisition. For this project, I can: • Configure the nRF9151 DK for NB-IoT connectivity, including APN, SIM, and modem settings. • Develop a lightweight application (Zephyr-based preferred, though NCS is fine) that reads the onboard temperature and humidity sensors and publishes the raw values directly to your Mosquitto broker at a configurable interval. • Implement robust MQTT and network reconnection logic so the device automatically recovers from cellular or broker disconnects. • Provide all source code, project configuration files, build instructions, and flashing steps. • Verify end-to-end operation through logs/screenshots or a live remote session where we observe messages arriving on your MQTT topic. To get started, I’ll need: • Your Mosquitto broker address, port, and security requirements (plain MQTT or TLS). • Topic structure you would like to use. • SIM provider and APN details. • Confirmation of the temperature/humidity sensor fitted to the DK (or photos if it is a custom add-on). Once I have those details, I can prepare the firmware and a step-by-step procedure so you can flash, test, and validate the solution remotely.