Hello there,

I am working on designing a custom PCB for a small project and could use some advice on component selection. My project involves creating a low-power IoT device that will be battery operated and communicate via Bluetooth Low Energy (BLE). The device will include a few sensors (temperature and humidity), a microcontroller; and a BLE module.

I am considering an ARM Cortex-M0+ chip due to its low power consumption, but I’m open to suggestions if there are better options for BLE and sensor integration.

I have read good things about modules like the Nordic nRF52 series, but they seem pricey. Are there more affordable options that still provide reliable performance?

Since this is a battery operated device, power efficiency is critical. Can you recommend a good voltage regulator or other power-saving techniques? PCB Assembly: This is my first time designing a board with multiple SMD components. Are there any tips or best practices I should follow to ensure a smooth manufacturing and assembly process?

Also, I have gone through this post; https://komponentkoll.se/t/woLQhW/noob-beh-ver-bekr-ftelse-optimering-devops-datorkomponenter which definitely helped me out a lot.

I have been exploring the Komponentkoll database, which has been helpful, but I would love to hear some real world experiences and tips from the community.

Thanks in advance for your help and assistance.