Quantity   Component name
1 × ESP-01 (optional) ESP8266 through-hole variant.
1 × ESP-03 (optional) ESP8266 Surface Mount variant.
1 × LD1117AS33 3.3V 1A Regulator (SOT223 package). Power Management ICs / Linear Voltage Regulators and LDOs
4 × ERJ-3GEYJ103V 10k Resistors (Fixed) / Thick Film Surface Mount (0603). R1-R4
1 × ERJ-3GEY102V 1k Resistor (Fixed) / Thick Film Surface Mount (0603). R5
2 × GRM219R60J106KE19D 10uF 6.3V 10% Capacitor (0805 package). C1 & C3. Capacitors / Ceramic
1 × GRM188R71E104KA01D 0.1uF 25V 10% Capacitor (0603 package). C2. Capacitors / Ceramic
1 × LTST-C190KFKT Orange LED (0603). LEDs and Accessories / Light Emitting Diodes (LEDs)
2 × KMR221NG LFS Mini Tactile SPST (Normally open). S1 & S2. Switches and Relays / Switches
1 × PCM12SMTR Slide Switch, S3. SPDT. Switches and Relays / Switches
2 × 1x7 Male Header .1" Pitch Male Header to interface board with breadboard.
1 × 1x6 Male Header .1" Pitch Male Header to interface board with FTDI chip
1 × 2x4 Female Header (optional) .1" Pitch Female header to mount ESP-01 to board.