2 layers80.4 × 120 mm
Next Gen MacroPad
DevX-Dragon/Next-Gen-MacroPad
This is a integrated macropad with all an programmable SoC
85 parts1
2 layers
SaltOMeter
basil-squared/SaltOMetera device that makes salty magic players saltier
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 45
- Nets
- 75
- Pads
- 265
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 26 Apr 2026
- Updated
- 1 May 2026
Overview
SaltOMeter is an open-source printed circuit board by basil-squared, from the basil-squared/SaltOMeter repository on GitHub. It is a 2-layer board with 45 parts on 75 nets.
It is built around the ESP32-S3-WROOM-1-N8, DRV8833PW and AP2112K-3.3, with the TP4056-42-ESOP8, AO3401A and SS14 among its other parts. Its parts include 12 capacitors, 12 resistors, 7 ICs, 4 connectors and 3 diodes. It belongs with the ESP32 boards of this library.
Main components
6
ESP32-S3-WROOM-1-N8
SMD,25.5x18mm-40℃~+85℃ -98.2dBm 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
DRV8833PW
TSSOP-16-40℃~+85℃ 2 2.7V~10.8V 360mΩ 500mA Bipolar Driver Yes TSSOP-16 Stepper Motor Driver ROHSTexas InstrumentsStepper Motor Driver
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
TP4056-42-ESOP8
ESOP-8-40℃~+85℃ 1 1A 2uA 4.2V 4V~8V Charging IC Lithium Battery Support ESOP-8 Battery Management ROHSTOPPOWERBattery Management
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
SS14
SMA(DO-214AC)-55℃~+150℃ 1A 25A 300uA@40V 40V 550mV@1A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
Parts
45| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3, C9, C10, C11, C12 |
| 3 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R10, R12 |
| 2 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C7 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R11 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5 |
| 2 | 2.2uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6 |
| 2 | 4.7k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R9 |
| 2 | 5.1K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D2 |
| 1 | 1.2k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 10 uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1 |
| 1 | 220uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | AP2112K-1.2 | Package_TO_SOT_SMD:SOT-23-5 | U7 |
| 1 | AP2112K-2.8 | Package_TO_SOT_SMD:SOT-23-5 | U6 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | BOOT | Button_Switch_SMD:SW_SPST_B3S-1000 | SW2 |
| 1 | Battery | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | BT1 |
| 1 | Camera Connector | Connector_FFC-FPC:Molex_200528-0240_1x24-1MP_P1.00mm_Horizontal | J4 |
| 1 | Conn_01x02_Socket | Connector_JST:JST_XH_B2B-XH-AM_1x02_P2.50mm_Vertical | J3 |
| 1 | Conn_01x04_Socket | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J2 |
| 1 | DRV8833PW | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U4 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U1 |
| 1 | MAX98357A | Package_DFN_QFN:TQFN-16-1EP_3x3mm_P0.5mm_EP1.23x1.23mm | U5 |
| 1 | Motor1B | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | Motor1A1 |
| 1 | Motor2B | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | Motor2A1 |
| 1 | RESET | Button_Switch_SMD:SW_SPST_B3S-1000 | SW3 |
| 1 | SS14 | Diode_SMD:D_SMA | D3 |
| 1 | SW_SPST | Button_Switch_THT:SW_Slide_SPDT_Straight_CK_OS102011MS2Q | SW1 |
| 1 | TP4056-42-ESOP8 | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm_ThermalVias | U2 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
Questions
What parts does the SaltOMeter use?
45 parts, built around the ESP32-S3-WROOM-1-N8, DRV8833PW, AP2112K-3.3 and TP4056-42-ESOP8. 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 SaltOMeter KiCad files?
From the basil-squared/SaltOMeter repository on GitHub, at the commit this page was made from: the board is SaltOMeter.kicad_pcb and its schematic SaltOMeter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the SaltOMeter design in my own project?
Its repository states no licence, so its author keeps all rights: ask basil-squared before reusing the design.
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