4 layers70 × 92 mm
Panelized watch
HolTyc/STM32_watch_NFC
Watch using STM32 with LED 7-segment display and RGB display
314 parts1
4 layers32 × 80 mm
Open Source Dildo running on the ESP32 Platform
- Size
- 32 × 80 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 52
- Nets
- 42
- Pads
- 178
- Tracks, vias
- 340, 243
- Pours
- 18
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 20 Oct 2021
- Updated
- 19 Apr 2023
Overview
EROS is an open-source printed circuit board by Valeria, from the Valeria/eRos-Psyche repository on GitHub. It is a 4-layer board of 32 × 80 mm with 52 parts on 42 nets, routed with 340 tracks and 243 vias.
It is built around the TPS613222ADBV, AP2114HA-3.3TRG1 and LMS33460MG, with the IRLML6246TRPBF and 10118194-0001LF among its other parts. Its parts include 13 resistors, 12 capacitors, 8 diodes, 7 ICs and 5 connectors.
Main components
5
TPS613222ADBV
SOT-23-5-40℃~+125℃@(TJ) 1 1.6MHz 5V 6.5uA 900mV~5.5V Boost Boost Built-in Fixed Yes SOT-23-5 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
AP2114HA-3.3TRG1
SOT-223-40℃~+85℃@(Ta) 1 1A 3.3V 30uVrms 65dB@(1kHz) 65uA 6V 750mV@(1A) Fixed Over Current Protection、Thermal Shutdown、使能控制 Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSDiodes IncorporatedVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LMS33460MG
SC-70-5-40℃~+85℃@(Tj) 1 1uA 3V 800mV~7V Active Low No No Open Drain Voltage Detector SC-70-5 Supervisor and Reset ICs ROHSTexas InstrumentsSupervisor And Reset ICs
IRLML6246TRPBF
SOT-23-55℃~+150℃ 1 N-channel 1.1V 1.3W 20V 290pF 3.5nC 4.1A 41pF 46mΩ@4.5V SOT-23 MOSFETs ROHSInfineon TechnologiesMOSFETs
10118194-0001LF
SMD-30℃~+80℃ 1 100V 5P Black Female Micro-B USB 2.0 SMD USB Connectors ROHSAmphenolUSB Connectors
README
README.mdeRos & Psyche
Open Source Dildo running on the ESP32 Platform
V1.0 Attaches to a ESP32-DevKitC-V4, check pinout to make sure it coincides.
It's meant to drive three (or less) 3.3v motors, max 1A per PWM output. Use with Li-Po or Li-Ion 3.7v nominal voltage batteries.
Connects to a Blynk.io server, which can be self-hosted, otherwise, use the free Blynk Cloud server or contact me for a spot on mine.
Mobile app can be recreated by scanning the following QR code on the Blynk phone app:
Hardware files are in the eRos directory, meant to be edited on KiCad v5.0 or higher.
Firmware files are in the Psyche directory, if you open the project on PlatformIO it should load all required Arduino libraries automatically, else, here's a list:
- shaggydog/OneButton@^1.5.0
- ayushsharma82/AsyncElegantOTA@^2.2.5
- ottowinter/AsyncTCP-esphome@^1.2.1
- ottowinter/ESPAsyncWebServer-esphome@^1.2.7
- bblanchon/ArduinoJson@^6.17.3
- s00500/ESPUI@^2.0.0
- khoih.prog/Blynk_Async_ESP32_BT_WF@^1.2.1
- adafruit/Adafruit BMP280 Library@^2.4.1
- teckel12/NewPing@^1.9.1
- gamegine/HCSR04 ultrasonic sensor@^2.0.2
- adafruit/Adafruit_VL53L0X@^1.1.1
Firmware.bin must be built with the huge_app.csv partition scheme.
Have fun!
Parts
52| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 4.7uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11 |
| 4 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R11, R12, R13 |
| 4 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R5, R6, R7 |
| 4 | AP2114HA-3.3TRG1 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2, U3, U4, U5 |
| 4 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1, D3, D4, D5 |
| 3 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R9, R10 |
| 3 | D | Nexperia:Nexperia_CFP3_SOD-123W_Handsolder | D6, D7, D8 |
| 3 | IRLML6246TRPBF | Package_TO_SOT_SMD:SOT-23_Handsoldering | MOSFET1, MOSFET2, MOSFET3 |
| 1 | 10118194-0001LF | digikey-footprints:USB_Micro_B_Female_10118194-0001LF_HandSolder | J1 |
| 1 | 2.2uH | Inductor_SMD:L_1008_2520Metric_Pad1.43x2.20mm_HandSolder | L1 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12 |
| 1 | 2K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2 |
| 1 | 470K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | D_Schottky | Nexperia:Nexperia_CFP3_SOD-123W_Handsolder | D2 |
| 1 | LMS33460 | Package_TO_SOT_SMD:SOT-353_SC-70-5_Handsoldering | U6 |
| 1 | MCP73831T-2 | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U1 |
| 1 | MiniSlideSwitch | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J5 |
| 1 | PMOS | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1 |
| 1 | Screw_Terminal_01x02 | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | BAT1 |
| 1 | Screw_Terminal_01x03 | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J4 |
| 1 | Screw_Terminal_01x06 | Connector_JST:JST_XH_B6B-XH-A_1x06_P2.50mm_Vertical | J2 |
| 1 | Screw_Terminal_01x07 | Connector_PinHeader_2.00mm:PinHeader_1x07_P2.00mm_Horizontal | J3 |
| 1 | TPS613222ADBV | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U7 |
The 51 most common of 52 parts.
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Questions
How big is the EROS PCB?
It measures 32 × 80 mm and has 4 copper layers, 1.6 mm thick.
What parts does the EROS use?
52 parts, built around the TPS613222ADBV, AP2114HA-3.3TRG1, LMS33460MG and IRLML6246TRPBF. 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 EROS KiCad files?
From the Valeria/eRos-Psyche repository on GitHub, at the commit this page was made from: the board is eROS/eROS.kicad_pcb and its schematic eROS/eROS.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the EROS design in my own project?
Its repository states no licence, so its author keeps all rights: ask Valeria before reusing the design.