YeaCreate-P4-EXTEND Expansion Board 3D Model
YeaCreate-P4-EXTEND Expansion Board Front View
YeaCreate-P4-EXTEND Expansion Board Back side
Introduction
The YeaCreate-P4-EXTEND expansion board is a development platform featuring high‑definition multimedia, high‑speed networking, versatile storage, and industrial‑grade power management. It connects seamlessly to the core board via high-density board‑to‑board (BTB) connectors, enabling developers to rapidly validate the functions of the YeaCreate‑ESP32‑P4‑CORE core board, streamline secondary development and debugging, and significantly shorten the path from prototype to mass production.
Dimensions
YeaCreate-P4-EXTEND Expansion Board Function List
| No. |
Description |
| 1 |
12V Power Input (5.5 × 2.1 mm) |
| 2 |
RJ45 Ethernet Port, supports 10/100 Mbps auto-negotiation |
| 3 |
USB Type-A 2.0 Ports × 2;
UP: Connected to ESP32-P4 chip;
DOWN: Connected to ESP32-C6 chip; |
| 4 |
ESP32‑C6 EN Button |
| 5 |
ESP32‑C6 BOOT Button |
| 6 |
ESP32‑P4 40‑Pin GPIO Header (Pitch: 2.54 mm) |
| 7 |
60‑Pin BTB Connector for ESP32‑P4 Core Board |
| 8 |
40‑Pin BTB Connector for ESP32‑P4 Core Board |
| 9 |
ESP32‑P4 BOOT Button |
| 10 |
ESP32‑P4 EN Button |
| 11 |
Type‑C Interface |
| 12 |
DSI MIPI Interface (15‑Pin FPC, Pitch: 1.0 mm) |
| 13 |
ESP32‑C6 20‑Pin GPIO Header (Pitch: 2.54 mm) |
| 14 |
VBAT Power Supply (ESP32‑P4 built‑in RTC backup battery, Pitch: 1.0 mm) |
| 15 |
CSI MIPI Interface (15‑Pin FPC, Pitch: 1.0 mm) |
| 16 |
MicroSD / TF Card Slot |
Pin Definitions
60-PIN BTB (S1)
| No. |
Description |
No. |
Description |
| 1 |
3.3V |
60 |
C6_EN |
| 2 |
3.3V |
59 |
3.3V |
| 3 |
3.3V |
58 |
3.3V |
| 4 |
3.3V |
57 |
C6_TX |
| 5 |
- |
56 |
C6_RX |
| 6 |
P4_GPIO0 |
55 |
C6_GPIO9 |
| 7 |
P4_GPIO1 |
54 |
DSI_DON |
| 8 |
GND |
53 |
DSI_DOP |
| 9 |
P4_GPIO54 |
52 |
DSI_CLKP |
| 10 |
P4_GPIO53 |
51 |
DSI_CLKN |
| 11 |
P4_GPIO52 |
50 |
DSI_D1N |
| 12 |
P4_SD1_PWR_CTL |
49 |
DSI_D1P |
| 13 |
P4_SD1_CMD |
48 |
P4_GPIO13 |
| 14 |
P4_SD1_CLK |
47 |
P4_GPIO15 |
| 15 |
P4_SD1_D3 |
46 |
P4_GPIO17 |
| 16 |
P4_SD1_D2 |
45 |
P4_GPIO14 |
| 17 |
P4_SD1_D1 |
44 |
P4_GPIO16 |
| 18 |
P4_SD1_D0 |
43 |
P4_GPIO11 |
| 19 |
P4_RX |
42 |
P4_GPIO9 |
| 20 |
P4_GPIO35 |
41 |
P4_GPIO10 |
| 21 |
P4_TX |
40 |
P4_GPIO12 |
| 22 |
P4_GPIO51 |
39 |
P4_GPIO8 |
| 23 |
P4_GPIO50 |
38 |
P4_GPIO7 |
| 24 |
P4_GPIO49 |
37 |
P4_GPIO6 |
| 25 |
P4_GPIO48 |
36 |
P4_GPIO5 |
| 26 |
P4_GPIO47 |
35 |
P4_GPIO4 |
| 27 |
P4_GPIO46 |
34 |
P4_SDA |
| 28 |
GND |
33 |
P4_SCL |
| 29 |
GND |
32 |
ESP_VBAT |
| 30 |
GND |
31 |
P4_EN |
40-PIN BTB (S2)
| No. |
Description |
No. |
Description |
| 61 |
C6_USB_DN |
100 |
C6_GPIO5 |
| 62 |
C6_USB_DP |
99 |
C6_GPIO6 |
| 63 |
CSI_DON |
98 |
C6_GPIO7 |
| 64 |
CSI_DOP |
97 |
C6_GPIO8 |
| 65 |
CSI_CLKP |
96 |
C6_GPIO14 |
| 66 |
CSI_CLKN |
95 |
C6_GPIO15 |
| 67 |
CSI_D1N |
94 |
C6_GPIO4 |
| 68 |
CSI_D1P |
93 |
C6_GPIO3 |
| 69 |
GND |
92 |
C6_GPIO2 |
| 70 |
P4_USB_DN |
91 |
C6_GPIO1 |
| 71 |
P4_USB_DP |
90 |
C6_GPIO0 |
| 72 |
GND |
89 |
P4_GPIO24 |
| 73 |
P4_GPIO28 |
88 |
P4_GPIO25 |
| 74 |
P4_GPIO29 |
87 |
P4_GPIO26 |
| 75 |
P4_GPIO31 |
86 |
P4_GPIO27 |
| 76 |
P4_GPIO32 |
85 |
P4_GPIO30 |
| 77 |
P4_GPIO34 |
84 |
P4_GPIO33 |
| 78 |
P4_GPIO36 |
83 |
3V3 |
| 79 |
GND |
82 |
3V3 |
| 80 |
GND |
81 |
3V3 |
40-PIN GPIO (J7) Connected to the ESP32-P4 chip
| No. |
Description |
No. |
Description |
| 1 |
5V |
2 |
5V |
| 3 |
3.3V |
4 |
3.3V |
| 5 |
GND |
6 |
GND |
| 7 |
GND |
8 |
GND |
| 9 |
P4_EN |
10 |
P4_GPIO0 |
| 11 |
P4_GPIO35 |
12 |
P4_GPIO1 |
| 13 |
P4_RX |
14 |
P4_TX |
| 15 |
P4_SCL |
16 |
P4_SDA |
| 17 |
P4_GPIO4 |
18 |
P4_GPIO5 |
| 19 |
P4_GPIO6 |
20 |
P4_GPIO7 |
| 21 |
P4_GPIO8 |
22 |
P4_GPIO9 |
| 23 |
P4_GPIO10 |
24 |
P4_GPIO11 |
| 25 |
P4_GPIO12 |
26 |
P4_GPIO13 |
| 27 |
P4_GPIO14 |
28 |
P4_GPIO15 |
| 28 |
P4_GPIO16 |
30 |
P4_GPIO17 |
| 31 |
P4_GPIO25 |
32 |
P4_GPIO24 |
| 33 |
P4_GPIO27 |
34 |
P4_GPIO26 |
| 35 |
P4_GPIO46 |
36 |
P4_GPIO47 |
| 37 |
P4_GPIO48 |
38 |
P4_GPIO49 |
| 39 |
P4_GPIO53 |
40 |
P4_GPIO54 |
20-PIN GPIO (J8) Connected to the ESP32-P4 chip
| No. |
Description |
No. |
Description |
| 1 |
5V |
2 |
3.3V |
| 3 |
5V |
4 |
3.3V |
| 5 |
GND |
6 |
C6_TX |
| 7 |
C6_EN |
8 |
C6_RX |
| 9 |
C6_GPIO9 |
10 |
C6_GPIO0 |
| 11 |
C6_GPIO1 |
12 |
C6_GPIO2 |
| 13 |
C6_GPIO3 |
14 |
C6_GPIO4 |
| 15 |
C6_GPIO5 |
16 |
C6_GPIO6 |
| 17 |
C6_GPIO7 |
18 |
C6_GPIO8 |
| 19 |
C6_GPIO14 |
20 |
C6_GPIO15 |
15-PIN DSI(J1) Driven by the ESP32-P4
| No. |
Description |
| 1 |
GND |
| 2 |
DSI_D1N |
| 3 |
DSI_D1P |
| 4 |
GND |
| 5 |
DSI_CLKN |
| 6 |
DSI_CLKP |
| 7 |
GND |
| 8 |
DSI_DON |
| 9 |
DSI_DOP |
| 10 |
GND |
| 11 |
P4_SCL |
| 12 |
P4_SDA |
| 13 |
GND |
| 14 |
3.3V |
| 15 |
3.3V |
15-PIN CSI(J2) Driven by the ESP32-P4
| No. |
Description |
| 1 |
GND |
| 2 |
CSI_DON |
| 3 |
CSI_DOP |
| 4 |
GND |
| 5 |
CSI_D1N |
| 6 |
CSI_D1P |
| 7 |
GND |
| 8 |
CSI_CLKN |
| 9 |
CSI_CLKP |
| 10 |
GND |
| 11 |
P4_GPIO31 |
| 12 |
P4_GPIO36 |
| 13 |
P4_SCL |
| 14 |
P4_SDA |
| 15 |
3.3V |
The YeaCreate-P4-EXTEND expansion board interfaces with the YeaCreate-ESP32-P4-CORE via two high-density board-to-board (BTB) connectors. J7 is a 40-pin connector corresponding to the ESP32-P4 GPIO. It provides access to peripherals including the display interface, camera interface, USB-A (UP) port, TF card slot, ESP32-P4 UART interface, and RJ45 Ethernet port. This connector also facilitates control via the P4-BOOT and P4-EN buttons, and supports programming through the Type-C interface. J8 is a 20-pin connector corresponding to the ESP32-C6 GPIO. It is configured for USB-A (DOWN) communication and programming, along with control via the C6-BOOT and C6-EN buttons.
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