V1 Hub75 driver board.
Order from OSH Park: https://oshpark.com/shared_projects/DTnHhcQ1 Firmware: https://github.com/joe714/pixelclient
The USB port on this board is for power only for cost reasons. You will need a USB to TTL serial adapter connected to J2 to do the initial firmware load.
J3 is the data connector for the HUB 75 panel. There isn't enough clearance to use a keyed shrouded header, so make sure you get the ribbon cable orientation correct (key should face towards the center of the board).
| Item | Qty | Reference(s) | Value | LibPart | Footprint | Comments |
|---|---|---|---|---|---|---|
| 1 | 1 | C1 | 1uF | Device:C | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | |
| 2 | 2 | C2, C3 | 10uF | Device:C | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | |
| 3 | 1 | C4 | 4.7uF | Device:C | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | |
| 4 | 1 | C5 | .1uF | Device:C | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | |
| 5 | 1 | D1 | LED | Device:LED | LED_SMD:LED_0603_1608Metric | DNP |
| 7 | 1 | J1 | USB_C_Receptacle_USB2.0 | Connector:USB_C_Receptacle_USB2.0 | Connector_TH_Local:USB_C_2.0_Vertical | https://www.aliexpress.us/item/3256803989627803.html?spm=a2g0o.order_list.order_list_main.10.35971802Oiyejk&gatewayAdapt=glo2usa |
| 8 | 1 | J2 | ISP | Connector_Generic:Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | ISP header |
| 9 | 1 | J3 | HUB75 | Connector_Generic:Conn_02x08_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x08_P2.54mm_Vertical | Hub75 data connector |
| 10 | 1 | J4 | Screw_Terminal_01x02 | Connector:Screw_Terminal_01x02 | TerminalBlock_TE-Connectivity:TerminalBlock_TE_282834-2_1x02_P2.54mm_Horizontal | Hub75 power connector |
| 11 | 1 | J5 | Conn_01x03_Male | Connector:Conn_01x03_Male | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | DNP, for future use |
| 12 | 1 | R1 | 10K | Device:R | Resistor_SMD:R_0603_1608Metric | |
| 13 | 2 | R2, R3 | 5.1K | Device:R | Resistor_SMD:R_0603_1608Metric | |
| 14 | 1 | R4 | 750 | Device:R | Resistor_SMD:R_0603_1608Metric | DNP |
| 15 | 2 | R6, R7 | DNP | Device:R | Resistor_SMD:R_0603_1608Metric | |
| 16 | 1 | SW1 | PRG | Switch:SW_Push | Button_Switch_SMD_Local:ESWITCH_TL3302G | DNP |
| 17 | 1 | SW2 | RST | Switch:SW_Push | Button_Switch_SMD_Local:ESWITCH_TL3302G | DNP |
| 18 | 1 | U1 | ESP32-WROOM-32D | RF_Module:ESP32-WROOM-32D | RF_Module:ESP32-WROOM-32 | https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf, use D or later revision and 8MB flash |
| 19 | 1 | U2 | TLV1117-33 | Regulator_Linear:TLV1117-33 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | http://www.ti.com/lit/ds/symlink/tlv1117.pdf |