ZIp the gerber folder and order PCB from a online PCB fabrication services (e.g. Elecrow, FusionPCB, etc.)

• No. of layers: 2
• PCB DImentions: 28x56mm
• PCB Thickness: 1.0mm
• PCB Color: Choose as you like

Shipping fees may vary depends on where you live, of course. However the cost for PCB itself might not exceed 10 USD for 10 PCBs.

• R3: 33k
• R1, R2, R4, R5: 10k

• U1: xc6206p332mr
• C1: 1uF
• U2: ESP-12F

• Push down the plastic part on the 2.54mm 1 x 8 pin header to not stick out from the back side of the PCB.

• J5: GY-521

• Pay extra attention to the terminals of the LiPo battery when you cut it. Don't short circuit it!

• Let's burn the firmware to ESP. 
  • Refer to https://github.com/likeablob/miniDenko/tree/master/pio
  • Connect your USB-UART converter to the board as follows.
• J2 Pin definitiion
• • V: 5V(LDO_IN)
  • R: ESP_RESET: RST pin:  
  • B: ESP_BOOT: GPIO0 pin: 
  • G: GND
  • T: ESP_TXD: TX pin: 
  • R: ESP_RXD: RX pin: 

• Detach the LED Matrix from the board, and cut the L-type pin header by a nipper.

• FIx the battery and the LiPo charing board to the LED matrix by using  a piece of double sided tape.

• Screw the holder (`minidenko-port-holder.stl`) from the reverse side of the LED matrix board.
  • M2 x 6mm Self-tapping screw x 2

• Put the LED matrix back to the board.

• Then, Let's put it in the case.
  • minidenko-case-body-opaque.stl for opaque filaments
  • minidenko-case-body-transparent.stl for transparent filaments
  • https://github.com/likeablob/miniDenko/tree/master/openscad

• Screw the lid by using 4 screws
  • M1.2 x 5mm Self tapping screw x 4
  • minidenko-case-backpanel-a.stl
  • https://github.com/likeablob/miniDenko/tree/master/openscad

• Power on and let's see how it works!

WIP

• Scan and connect to the AP named "miniDenko-xxxxx"(here xxxxx is a unique chip ID)
• Open http://192.168.1.5/ in a browser (Chrome recommended)

• Here you can edit & submit new messages ( Try to tap the "Add" button)

• miniDenko internally has 3 "slots" for preserving messages. You can "tap" the device to switch the messages.

# To connect your miniDenko to another AP

• Tap ⚙️ and go to the setting tab

• Tap "Config" button next to "WiFi AP (Client)"

• Input your AP's credentials and tap "Save"
• Then you have to change the WiFI mode to "AP+STA", 
• Tap "Config" button next to "WiFi Mode"

• Reboot your miniDenko to apply the settings.
  • You can see miniDenko's IP at the "IP(Client)" badge.