Component List

Resistors

R1…R5, R7, R9…R11, R14 = 10 kΩ, 1%

R6, R12 = 100 Ω, 1%

R8, R13 = 1 kΩ, 1%

R15 = LDR GL5516, 5.4×4.4 mm, lead spacing 3.4 mm

R16 = NTC 10 kΩ, type 3950, 5%

R17 = NC

Capacitors

C1 = 100 n / 50 V, 10%, X7R, 1/10″

C2, C3 = 10 µ / 25 V, 10%, tantalum, 1/10″

Semiconductors

D1, D2 = 1N4148, DO-35

LED = red LED, 3 mm

Q1 = KSA708YBU, TO-92*

Q2 = 2N3904, TO-92*

U1 = Arduino Pro Mini (ATmega328P, 5 V, 16 MHz)

U2 = TSOP14438 IR detector

LCD1 = LCD module type 1602, alphanumeric, 36×80 mm

Other

J1 = USB-C socket, chassis mounted, wired (5 V power supply only), 9×16 mm

J2 = 3.5 mm headphone jack, PCB mount, PJ-325M (5 pin connections, 2 switched contacts)

H1 = 6-pin female header, right angle, 1/10″

H2 = NC*

P1 = NC

SW1…SW20 = tactile switches, 12×12×7.3 mm

20 keytops + clear caps for switches (cap is 11.8×11.8 mm)

16-pin male header, height 18.54 mm, 1/10″, vertical, for LCD

16-pin socket, 1/10″, vertical, for LCD

FT232 Pro Mini USB-C TTL adaptor (with 3-pin 3.3 V/5 V selection)

U1 = 12-pin header, vertical, 1/10″, for Arduino Pro Mini

2× NTC, 10 kΩ, waterproof temperature sensor, type 3950 10K with 1 m cable

3.5 mm plug

USB-A to USB-C cable, 1 m

PCB 220684-1 v1.0

Enclosure

4× screw, M2×12, steel

4× spacer sleeve, cylindrical, length 3 mm, Øout: 5 mm, polyamide

4× nut, M2, steel

8× washer, M2, Ø 5 mm, height 0.3 mm, polyamide

4× screw, M3×6, steel

4× washer, M3, Ø 7 mm, height 0.5 mm, polyamide

4× standoff, M3, female-female, Øout: 6 mm, length 8 mm, polyamide

4× screw, M3×10, countersunk head, hex (Allen) key 2 mm, steel

4× screw, M3×12, countersunk head, hex (Allen) key 2 mm, steel

4× nut, M3, plating black finish, height 2.4 mm, steel

4× self-adhesive foot; height 3.8 mm, transparent, polyurethane

6 panels made of 3 mm extruded acrylic transparent/clear sheet:
   back, front, bottom, 2× side, and U-shaped keyboard support panel

2 display support panels made of 5 mm extruded acrylic transparent/clear sheet

3 panels made of 3 mm cast acrylic umbra transparent sheet (dark brown): display bezel, small support for display bezel, and keyboard panel

* see text