4 layers
Watch
VarunAPatil/MedSafe
The goal: a compact, wrist-worn device that simultaneously tracks heart rate & SpO₂, motion & orientation, altitude & atmospheric pressure, and GNSS location — all in one tightly integrated system.
121 parts
4 layers106.9 × 56.3 mm
Horizon
Anthony-Maxwell1/horizonAI was used during the schematic stage, providing insight on component suggestions, finding some obscure docs and providing wiring/gpio usage suggestions.
- Size
- 106.9 × 56.3 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 62
- Nets
- 75
- Pads
- 327
- Tracks, vias
- 1,306, 126
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 May 2026
- Updated
- 25 May 2026
Overview
Horizon is an open-source printed circuit board by Anthony-Maxwell1, from the Anthony-Maxwell1/horizon repository on GitHub. It is a 4-layer board of 106.9 × 56.3 mm with 62 parts on 75 nets, routed with 1,306 tracks and 126 vias.
It is built around the ESP32-S3, DRV2605LDGS and NCP1529ASN, with the W25Q128JVSIQ and BQ24074RGTR among its other parts. Its parts include 19 capacitors, 14 resistors, 7 connectors, 6 ICs and 4 inductors. It belongs with the ESP32 boards of this library.
Main components
5
ESP32-S3
QFN-56-EP(7x7)-40℃~+105℃ -98.4dBm 150Mbps 2.412GHz~2.484GHz 2.4GHz 21dBm 340mA 3V~3.6V 88mA SPI、USB、UART、ADC、I2C、I2S、PWM WiFi transceiver QFN-56-EP(7x7) RF Transceiver ICs ROHSEspressif SystemsRF Transceiver ICs
DRV2605LDGS
VSSOP-10-0.5mm-40℃~+85℃ 1 2V~5.2V 500uA I2C Yes VSSOP-10-0.5mm Brushed DC Motor Drivers ROHSTexas InstrumentsBrushed DC Motor Drivers
NCP1529ASN
TSOP-5-40℃~+85℃ 1 1.7MHz 1A 2.7V~5.5V 28uA 900mV~3.9V Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting Step-down type Yes TSOP-5 DC-DC Converters ROHSonsemiDC-DC Converters
W25Q128JVSIQ
SOIC-8-208mil-40℃~+85℃ 100,000 cycles 120ms@(32KB) 128Mbit 133MHz 1uA 2.7V~3.6V 20 Years 3ms Power-on reset、Hardware write protection、Software write protection、Write enable latch、Absolute write protection SPI SOIC-8-208mil NOR FLASH ROHSWinbondNOR FLASH
BQ24074RGTR
QFN-16-EP(3x3)-40℃~+125℃ 1 1.5A 4.2V 4.35V~10.2V 6.5uA Charging IC Lithium Battery Not supported Support QFN-16-EP(3x3) Battery Management ROHSTexas InstrumentsBattery Management
README
README.mdHorizon
AI Usage
AI was used during the schematic stage, providing insight on component suggestions, finding some obscure docs and providing wiring/gpio usage suggestions. It was also used to review the schematic, in quick prototyping stage. It was also used quite heavily in understanding concepts such as decoupling, and pretty heavily in instructing on how to apply decoupling.
Parts
62| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 0.1uF | Capacitor_SMD:C_0201_0603Metric | C10, C15, C17, C18 |
| 4 | 1uF | Capacitor_SMD:C_0201_0603Metric | C11, C12, C13, C16 |
| 3 | 330Ω | Resistor_SMD:R_0603_1608Metric | R12, R13, R14 |
| 3 | TBD | Capacitor_SMD:C_0201_0603Metric | C8, C9, C19 |
| 2 | 10kΩ | Resistor_SMD:R_0603_1608Metric | R9, R10 |
| 2 | 18kΩ | Resistor_SMD:R_0603_1608Metric | R8, R11 |
| 2 | 22pF | Capacitor_SMD:C_0201_0603Metric | C6, C7 |
| 2 | 5.1k | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | Conn_01x02_Pin | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J1, J6 |
| 2 | D_TVS | Diode_SMD:D_0402_1005Metric | D2, D3 |
| 2 | TBD | Inductor_SMD:L_Bourns_SDR0604 | L2, L4 |
| 1 | 0.1uF | Diode_SMD:D_0402_1005Metric | C1 |
| 1 | 1.8kΩ | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 100 kΩ | Resistor_SMD:R_0603_1608Metric | R2 |
| 1 | 100nF | Capacitor_SMD:C_0201_0603Metric | C4 |
| 1 | 10k | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 10nF | Capacitor_SMD:C_0201_0603Metric | C14 |
| 1 | 10uF | Capacitor_SMD:C_0201_0603Metric | C2 |
| 1 | 10µF | Capacitor_SMD:C_0201_0603Metric | C3 |
| 1 | 2.2µH | Inductor_SMD:L_Bourns_SDR0604 | L1 |
| 1 | 22µF | Capacitor_SMD:C_0201_0603Metric | C5 |
| 1 | 2kΩ | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 453 kΩ | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | BQ24074RGT | Package_DFN_QFN:VQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | U4 |
| 1 | CDX-1293 | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y1 |
| 1 | Conn_01x02_Socket | Solder Pads:2x solder pads | J5 |
| 1 | Conn_01x06_Pin | Connector_FFC-FPC:Hirose_FH12-6S-0.5SH_1x06-1MP_P0.50mm_Horizontal | J2 |
| 1 | Conn_01x14_Pin | Connector_FFC-FPC:Hirose_FH12-14S-0.5SH_1x14-1MP_P0.50mm_Horizontal | J4 |
| 1 | DRV2605LDGS | Package_SO:TSSOP-10_3x3mm_P0.5mm | U5 |
| 1 | ESP-PSRAM64H | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U6 |
| 1 | ESP32-S3 | Package_DFN_QFN:QFN-56-1EP_7x7mm_P0.4mm_EP4x4mm | U1 |
| 1 | L | Inductor_SMD:L_Bourns_SDR0604 | L3 |
| 1 | LED_RGB | LED_SMD:LED_RGB_5050-6 | Status1 |
| 1 | NCP1529A | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | NPN | Package_TO_SOT_THT:TO-92L | Q1 |
| 1 | PCB_Antenna:PCB_Antenna | PCB_Antenna:PCB_Antenna | Ant1 |
| 1 | SD_Card_Receptacle | Connector_Card:SD_TE_2041021 | J7 |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | SW_Push | Button_Switch_THT:SW_Push_1P2T_Vertical_E-Switch_800UDP8P1A1M6 | SW2 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J3 |
| 1 | W25Q128JVS | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U3 |
The 58 most common of 62 parts.
Questions
How big is the Horizon PCB?
It measures 106.9 × 56.3 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Horizon use?
62 parts, built around the ESP32-S3, DRV2605LDGS, NCP1529ASN and W25Q128JVSIQ. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Horizon KiCad files?
From the Anthony-Maxwell1/horizon repository on GitHub, at the commit this page was made from: the board is hardware/horizon.kicad_pcb and its schematic hardware/batt.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Horizon design in my own project?
Its repository states no licence, so its author keeps all rights: ask Anthony-Maxwell1 before reusing the design.
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