Amazon.com: DiCUNO 20pcs Pre-Wired SMD Micro LED Light Emitting Diodes, Pre-soldered 0805 Mini Lights for DIY, Science Projects, Wire Length 6.3" (16cm), Colors: Green : Industrial & Scientific
AZDelivery ESP-32S Dev Kit C Unsoldered NodeMCU Module WLAN WiFi Development Board with CH340 (successor to ESP8266) and compatible with Arduino including e-book : Amazon.de: Business, Industry & Science