What are the pros and cons of using Arduino vs ESP32?
I am starting a new project and I have both an Arduino Uno and an ESP32 sitting in my drawer. I am leaning toward the ESP32 because it has built-in Wi-Fi and Bluetooth, but are there any hidden downsi...
Is cellular IoT (LTE-M/NB-IoT) worth the cost for hobbyists?
I want to build a GPS tracker for my car that does not rely on local Wi-Fi. I see a lot of talk about cellular IoT like NB-IoT and LTE-M. Is this accessible for a hobbyist, or is the cost of the SIM c...
How do I secure my IoT dashboard from unauthorized access?
I recently launched a small IoT project to track my office energy usage. It is currently exposed to the web via port forwarding, and I am worried about security. What are the best practices for securi...
How do I validate the accuracy of my DIY IoT sensors?
I have built a custom air quality monitor using a few cheap sensors. The data looks somewhat reasonable, but I have no idea how accurate it actually is. How do people typically calibrate or validate D...
What is the best way to handle data privacy in IoT?
I am building a smart home camera and I am extremely concerned about data privacy. How can I ensure that the data captured by my device stays private and is not exposed? Beyond basic password protecti...
Can I use NFC for local IoT device configuration?
I am thinking of building a device that does not have a screen or a keyboard. I want to use my phone to configure the Wi-Fi credentials when I first turn it on. Is NFC a good solution for this? How ha...
How do I simulate a large number of IoT devices for testing?
I am working on an IoT platform and I want to test how it handles hundreds of concurrent connections. I obviously do not have 100 physical devices lying around. Is there a way to write a script to sim...
How does LoRaWAN differ from Zigbee for local sensor networks?
I am trying to decide on the right protocol for a smart home mesh network that I am planning. I keep reading about LoRaWAN and Zigbee. What are the pros and cons of each in terms of range, power draw,...
How do I power an IoT device that needs to last for years?
I am working on a remote weather station project that will be placed in a field with no mains electricity. The goal is for it to run for at least two years on a single battery charge. How should I app...
How do I choose the right voltage level for my IoT sensors?
I am constantly mixing up 3.3V and 5V components. I know that mixing them can fry my microcontroller or lead to unreliable communication. How do people manage this in complex projects? Do you use leve...
