2 layers0.6 × 27.9 mm
2 layers78.7 × 58.4 mm
40Hz
oponyx/40HzGen4Advanced ESP based 40Hz Gamma brain stimulator
- Size
- 78.7 × 58.4 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 34
- Nets
- 35
- Pads
- 122
- Tracks, vias
- 39, 0
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 4 Feb 2022
- Updated
- 13 May 2023
Overview
40Hz is an open-source printed circuit board by oponyx, from the oponyx/40HzGen repository on GitHub, published under the MIT licence. It is a 2-layer board of 78.7 × 58.4 mm with 34 parts on 35 nets, routed with 39 tracks and 0 vias.
It is built around the ESP-12F, WEMOS D1 MINI and HLK-PM01, with the AMS1117-3.3 among its other parts. Its parts include 9 resistors, 4 capacitors, 4 ICs, 4 switches and 3 connectors. It belongs with the ESP8266 boards of this library.
Main components
4
ESP-12F
SMD,24x16mm-40℃~+85℃ -96dBm 15dBm 2.4GHz 3.3V 375mA 55mA PCB UART WIFI4 SMD,24x16mm WiFi Modules ROHSDOITWiFi Modules
WEMOS D1 MINI
A mini wifi board with 4MB flash based on ESP-8266EX, hardware version 4.0.0.LolinUncategorised
HLK-PM01
DIP,34x24mm0.1W 100mVp-p 15mm 20mm 34mm 3W 3kV 5V 700mA 73% 85VAC~265VAC AC-DC Short Circuit Protection、Over Current Protection、Fault self-recovery ±0.2% 插件,34x20mm AC-DC Power Modules ROHSHI-LINKAC-DC Power Modules
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.md:warning: warning:This device will flash/strobe the light! Don't use it next to individuals with epilepsy! :warning:
:warning: The research has not been tested and has not been proven to work on humans! Use it at your own risk! :warning:
40HzGen
An advanced ESP8266 based device used to drive a 40Hz (programmable) flashing led light for brain stimulation and non invasive Alzheimer Gamma Light Therapy.
https://www.webmd.com/brain/what-to-know-about-gamma-brain-waves
http://news.mit.edu/2016/visual-stimulation-treatment-alzheimer-1207
https://picower.mit.edu/innovations-inventions/genus
Features:
- Complete configuration and control through web pages
- Programmable Light On-Time, flickering Frequence and Brightness
- WIFI Station and AP mode
Prototype board
Hardware notes:
- Board designed to be fitted with 'Wemos D1 mini' or 'ESP12F' modules
- Optional OLED SS1306 Display
- Power to logic from AC main (populating PS1 with a HLK-PM01 module) or external 5V
- External Input for Light Power
- ESP01 version (in progress)
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10k | Resistor_SMD:R_1206_3216Metric | R4, R8, R9, R10, R11 |
| 3 | 100n | Capacitor_SMD:C_1206_3216Metric | C1, C2, C4 |
| 2 | 4.7k | Resistor_SMD:R_1206_3216Metric | R2, R5 |
| 1 | 100 | Resistor_SMD:R_1206_3216Metric | R3 |
| 1 | 100mA | Fuse:Fuse_1206_3216Metric | F1 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C3 |
| 1 | 1N4148 | Diode_SMD:D_SOD-123 | D1 |
| 1 | 200mA | Fuse:Fuse_1206_3216Metric | F2 |
| 1 | 470 | Resistor_SMD:R_1206_3216Metric | R1 |
| 1 | 5V | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-3-2-5.08_1x02_P5.08mm_Horizontal | J2 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U4 |
| 1 | CANC | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW4 |
| 1 | D4184 | Package_TO_SOT_SMD:TO-252-2 | Q1 |
| 1 | DOWN | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW3 |
| 1 | ESP-12F | RF_Module:ESP-12E | U1 |
| 1 | HLK-PM01 | Converter_ACDC:Converter_ACDC_HiLink_HLK-PMxx | PS1 |
| 1 | LED | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D2 |
| 1 | OK | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW1 |
| 1 | PC817 | Package_SO:SOP-4_3.8x4.1mm_P2.54mm | U3 |
| 1 | Power | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-3-5-5.08_1x05_P5.08mm_Horizontal | J1 |
| 1 | SSD1306 | Connector_JST:JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | J3 |
| 1 | UP | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW2 |
| 1 | WeMos_D1_mini | Module:WEMOS_D1_mini_light | U2 |
The 30 most common of 34 parts.
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Questions
How big is the 40Hz PCB?
It measures 78.7 × 58.4 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 40Hz use?
34 parts, built around the ESP-12F, WEMOS D1 MINI, HLK-PM01 and AMS1117-3.3. 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 40Hz KiCad files?
From the oponyx/40HzGen repository on GitHub, at the commit this page was made from: the board is kicad/40Hz.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 40Hz design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).