2 pcs. Relay Module 5V - max. load 10A / 250V - 5V logic level

WEMOS D1 Mini Relay Shield 250VAC 10A

2 pcs. 10-bit Breadboard Logic Level Indicator 3.3V to 5V - cascadable

2pcs LED Warning Canceller Decoder 12V 501 T10 W5W T15 W16W 192 Load Resistor

8ch 3.3V 5V 12V 24V TTL LvTTL Digital Logic Level Conversion Protection Panel

3 x Logic Level Converter 4-Channel 3.3V-5V

Logic Level Converter Module Bi-Directional Shifter 5V to 3.3V TTL 8-Channel A3G

2-Channel Logic Level Converter 3.3V-5V with 3.3V LDO