index.rst

Introduction

1.Description

T-Watch K210 is a programmable watch kit based on K210, consisting of three base plates and screens.You can program T-Watch K210 via Arduino or MicroPython.

2.Hardware parameters

• Main chip: K210
• 1.54-inch capacitive HD display: ST7789V
• Touchpad chip: FT6236U
• 2 million pixel HD camera: OV2640
• Three-axis accelerometer: BMA423
• Microphone: MSM261S
• Speaker: Max98357A
• PMU power management: AXP202
• RTC clock module: PCF8563
• 6-axis accelerometer: MPU6050
• Support TF card reading and writing
• Support the use of expandable modules
• Power supply: Type-C USB/lithium battery

2.1 K210

• K210 Master：
  • With machine vision capabilities
  • With machine hearing ability
  • Better low-power vision processing speed and accuracy
  • Unique programmable IO array, making product design more flexible
  • 3.3V/1.8V dual voltage support, no level conversion required, saving cost
  • Support firmware encryption, which is difficult to crack using ordinary methods
  • CPU: equipped with dual-core 64-bit high-performance low-power CPU based on RISC-V ISA
  • Low voltage, lower power consumption compared with systems with the same processing capacity
  • TSMC 28nm advanced manufacturing process, temperature range -40°C to 125°C, stable and reliable
  • Equipped with a convolutional artificial neural network hardware accelerator KPU, which can perform convolutional artificial neural network operations with high performance

Note

Kendryte K210 is a system-on-chip (SoC) that integrates machine vision and machine hearing capabilities. Use TSMC (TSMC) ultra-low power The 28-nanometer advanced manufacturing process, with dual-core 64-bit processor, has better performance, stability and reliability. The program strives to The development of zero gate biology can be deployed in the user's products in the shortest time and transform the product artificial intelligence. Kendryte K210 is positioned as an SoC in the AI and IoT market, and is a very convenient MCU.

3.Pin definition

3.1 Display

K210	properties	description
GPIO36	SPI	TFT_CS
GPIO38	SPI	TFT_DC
GPIO37	SPI	TFT_RST
GPIO39	SPI	TFT_WR
GPIO17	BL	TFT_BL

3.2 Touch

K210	properties	description
GPIO31	I2C	Touch_SDA
GPIO30	I2C	Touch_SCL

3.3 TF Card

K210	properties	description
GPIO29	SPI	TF_CS
GPIO28	SPI	TF_MOSI
GPIO27	SPI	TF_MISO
GPIO26	SPI	TF_SCLK

3.4 Camera:OV2640

K210	properties	description
GPIO42	DVP	DVP_RST
GPIO43	DVP	DVP_VYNC
GPIO44	DVP	DVP_PWDN
GPIO45	DVP	DVP_HYNC
GPIO46	DVP	DVP_XCLK
GPIO47	DVP	DVP_PCLK
GPIO40	DVP	DVP_SDA
GPIO41	DVP	DVP_SCL

3.5 Microphone:MSM261S

K210	properties	description
GPIO18	I2S	MIC_BCK
GPIO19	I2S	MIC_WS
GPIO20	I2S	MIC_DAT

3.6 Interactive chip:ESP32

K210	properties	description
GPIO25	SPI-CS	ESP32-IO05
GPIO28	SPI-MOSI	ESP32-IO14
GPIO26	SPI-MISO	ESP32-IO23
GPIO27	SPI-SCLK	ESP32-IO18

3.7 Speaker:Max98357A

K210	properties	description
GPIO35	I2S	MAX_BCK
GPIO33	I2S	MAX_WS
GPIO34	I2S	MAX_DAT

3.8 PMU:AXP202

K210	properties	description
GPIO31	I2C	Touch_SDA
GPIO30	I2C	Touch_SCL
GPIO32	INT	AXP_IRQ

3.9 Six-axis accelerometer:MPU6050

K210	properties	description
GPIO31	I2C	MPU_SDA
GPIO30	I2C	MPU_SCL