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Nerf timer

Salted-Peanuts·KOTH-Timer·PCB/v0.1-display-issues/KiCad_files/nerf timer.kicad_pcb

Top view of the Nerf timer PCB
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Nerf timer is an open source AVR/Arduino PCB design by Salted-Peanuts: a 4-layer, 75.9 × 93.5 mm board with 30 components (19 distinct parts). It is built around the 5V_STEP_UP, ARDUINO_NANO_ESP32. Filed under iot & wireless and displays & leds.

DIY Arduino Nano ESP32 King of the Hill timer for Nerf, foam flinging, skirmish games, and objective-based events. Includes build guide, firmware, BOM, schematic, and phone referee UI.

This folder contains the first manufactured PCB design for the KOTH Timer.

Manufactured and partially working, but not recommended for new builds.

PCB v0.1 has been manufactured and the timer is functional through the web UI, but this revision has known display reliability issues.

Interference Flickering Incorrect segments Unstable or inconsistent output

The main timer logic and web interface can still function, but the display behaviour is not reliable enough for this revision to be recommended as the main PCB build.

Built around

5V_STEP_UPARDUINO_NANO_ESP32

Parts list

30 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
5V_STEP_UP
5v_Step_Up
U1
1
ARDUINO_NANO_ESP32
Arduino_Nano_ESP32
A1
1
18650_CELL
18650_Cell
BT1
1
2.5-3A_FUSE
2.5-3A_Fuse
F1
1
Rocker_Switch
SW1
1
Push_Switch (Team_A)
SW2
1
Push_Switch (Team_B)
SW3
1
SW_Push
SW4
2
4_Digit_DIsplay (Team_A)
TM1637-A1, TM1637-A2
2
4_Digit_DIsplay (Team_B)
TM1637-B1, TM1637-B2
1
LED (Team_A)
D1
1
LED (Team_B)
D2
1
LED_RED
D3
1
LED_YELLOW
D4
3
LED_GREEN
D5, D6, D7
1
470UF_E_CAP
470uf_E_Cap
C1
1
0.1UF_C_CAP
0.1uf_C_Cap
C2
2
100K
R1, R2
7
220R
R3, R4, R5, R6, R7, R8, R9

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