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grch101
45c603f71c
|
5 years ago | |
|---|---|---|
| .. | ||
| Gerber | 5 years ago | |
| KiCad | 5 years ago | |
| Pictures | 5 years ago | |
| README.md | 5 years ago | |
README.md
Tonuino-PCB based on Wemos' Lolin D32
Attention
- In rev1 I made a mistake that leads to a short circuit. Hopefully nobody ordered it :-( Current revision is 1.1
- This PCB is not yet tested!
Features
- Fits Wemos Lolin D32 (not Lolin32, Lolin D32 pro or Lolin 32 lite!)
- Outer diameter: 53 x 81mm
- JST-PH 2.0-connectors for buttons, rotary encoder, Neopixel, RFID and reset (not 2.54mm pitch!)
- 2.54mm-connectors for MAX98357a and uSD-card-reader
- Mosfet-circuit that switches off MAX98357a, Neopixel, headphone-pcb and uSD-card-reader automatically when deepsleep is active
- All peripherals are solely driven at 3.3V! Keep this especially in mind when choosing uSD-reader. If in doubts use one without voltage-regulator (link below).
- If headphone-pcb is used, MAX98357a is automatically muted when there's a headphone plugged in and vice versa.
- If
HEADPHONE_ADJUST_ENABLEis set and a headphone is plugged in, an alternative maximum volume is activated. I added this feature because headphone-pcb makes use of an amp that (probably) "allows" children to damage ears. This maximum volume can be set and re-adjusted via webgui. - Reset-button
Prerequisites
- If no headphone-pcb is connected, make sure
HEADPHONE_ADJUST_ENABLEis not active. - Make sure to change values of voltage divider's restors. They can be configured in
settings.hasrdiv1andrdiv2and need to be set to 100k/100k. - Change
VOLTAGE_READ_PINto 35.
Things to mention
- Better don't solder Lolin D32 directly to the PCB. I recommend to make use of female connectors instead (link below).
- When ordering a LiPo-battery, make sure to use one with deep discharge protection! This is really really really important!!!
- Doesn't (currently) support SD-MMC and RFID-reader PN5180
Hardware-setup
The heart of my project is an ESP32 on a Wemos Lolin D32 development-board. Make sure to install the drivers for the USB/Serial-chip (CP2102 e.g.).
- MAX98357A (like Adafruit's)
- uSD-card-reader 3.3V only
- RFID-reader
- RFID-tags
- Neopixel-ring
- Rotary Encoder
- Buttons
- Speaker
- uSD-card: doesn't have to be a super-fast one; uC is limiting the throughput. Tested 32GB without any problems.
- JSP PH-2.0-connectors
- Female connector
- (optional) IDC-connector female 6pin for headphone-pcb
- (optional) IDC-connector male 6pin for headphone-pcb
- LiPo-battery (2500 mAh) with connector JST PH 2.0mm
Parts
- 1x IRF530NPbF (N-channel MOSFET)
- 1x NDP6020P (P-channel MOSFET)
- 1x 1k resistor
- 1x 10k resistor
- 2x 100k resistor
- 4x JST-PH2.0-connector (2 Pins)
- 3x JST-PH2.0-connector (3 Pins)
- 1x JST-PH2.0-connector (5 Pins)
- Female connector as socket for Lolin32, uSD-reader and MAX98357a
- (optional for headphone-PCB) 1x IDC-connecor female (6pin)
- (optional for headphone-PCB) 1x IDC-connecor male (6pin)
Where to order?
- I ordered my PCBs at jlcpcb. You have to order at least 5 pcs, which is only at 2$ + shipping. It took two weeks to arrive. If you want to have a look at the PCBs first (without having KiCad installed), visit Gerberlook and upload
gerber.zipfrom the Gerberfiles-folder. - Enter 31 x 31mm as dimensions in JLCPCB's order-form.
Do I need to install KiCad?
Unless you don't want to change anything: no! All you need to provide are the gerberfiles (gerber.zip) to your manufactur (e.g. jlcpcb). However, all Kicad-files used are provided as well.