What online stores with radio parts and components can you recommend? Need a place with quality goods for prototyping and assembling electronics. Interested in delivery conditions, availability of rare parts and ease of payment for EU customers.

If you are developing IoT devices, it is important that the components are stable and of high quality. I recommend looking at eselcom.com eselcom.com/ – they have a good selection of communication modules (Wi-Fi, Zigbee, Bluetooth, LoRa), as well as sensors for temperature, humidity and motion. I have purchased radio modules and controllers from them several times – everything meets the stated specifications. They also have prototyping boards, cases and power electronics, so you can order everything in one place. Delivery across Europe is quite fast, and the prices are more pleasant than those of large distributors.