RobotZero Processor
DESCRIPTION RobotZero is one of TinyCircuits' second-generation processor boards, adding performance upgrades and additional features to the original TinyDuino including (4) Wireling connectors, (2) motor ports, (4) servo ports, and a built-in 9-Axis sensor. RobotZero is based on the Atmel SAMD21 32-bit ARM Cortex M0+ processor (the same one used in the Arduino Zero) and provides a USB connectivity port, power management and battery charger in a single 30x30mm board. We've kept our standard TinyShield expansion port, allowing for use with our current shields. New to Wirelings? Check out the Wireling Overview! Note* The battery and 5-Pin Wireling cables are sold separately. Main Features: Atmel SAMD21 processor (same as is used on the Arduino Zero) More memory compared to TinyDuino (both Flash and RAM) TinyShield expansion connector, built-in micro USB connection Power switch, regulator, lithium battery management on board Precision clock crystal and Real-Time Clock hardware built-in, low power standby Populated 9-Axis Sensor: 3D accelerometer, 3D gyroscope, and 3D magnetometer (4) Wireling Ports (2) Motor Ports (4) Servo Ports Up to 10 ADC inputs, up to 10 PWM outputs, up to 16 external interrupts To learn more about the TinyDuino Platform, click here TECH SPECS Atmel ATSAMD21G18A 32 bit ARM processor at 48MHz, Arduino Zero compatible 32.728KHz clock crystal, RTC hardware built-in with standby mode down to 0.2mA Expandable with our full lineup of stackable TinyShield boards Ultra-compact size and weight (smaller than a US Quarter!) 30mm x 30mm (1.18 inches x 1.18 inches) Max Height: 3.2mm (0.13 inches) Ultra-thin 0.61mm (0.024 inches) PCB Weight: 3 grams (0.11 ounces) Atmel 32-bit ATSAMD21G18A ARM Microcontroller ARM Cortex M0 256KB Flash, 32KB SRAM 12-bit ADC, 10-bit DAC Default Clock speed: 48MHz TI DRV8834 H-bridge Stepper or DC Motor Driver This board features (2) of these motor drivers for driving two separate stepper motors, or DC motors Output Current 1.5-A Continuous, 2.2-A Peak per H-Bridge Wide Power Supply Voltage Range: 2.5 V to 10.8 V TI PCA9544A Low Voltage 4-Channel I2C Multiplexer Channel Selection via I2C Bus 0 to 400kHz Clock Frequency Low Standby Current Four Active-Low Interrupt Inputs Active-Low Interrupt Output ST LSM9DS1 9-Axis 3D accelerometer, 3D gyroscope, 3D magnetometer 3 acceleration channels, 3 angular rate channels, 3 magnetic field channels ±2 / ±4 / ±8 / ±16 g linear acceleration full scale ±4/±8/±12/±16 gauss magnetic full scale ±245/±500/±2000 dps angular rate full scale 16-bit data output Embedded temperature sensor "Always-on" eco power mode down to 1.9mA Embedded FIFO Position and motion detection functions Click/double-click recognition Atmel ATtiny841 8-bit Microcontroller 8 KB Flash Memory 512 Bytes SRAM and EEPROM Voltage: 1.7V - 5.5V 2.7V – 5.5V operating voltage with built-in 3.3V regulator Current: 20mA 20 IO pins available- up to 10 ADC inputs or up to 10 PWM outputs Arduino compatible bootloader with CDC Serial port, plug and play on OSX and Windows 10 NOTES To send text to the Arduino IDE Serial Monitor, use the SerialUSB object instead of Serial If you were able to upload a sketch to the TinyZero and now it does not respond, you may need to force this into bootloader mode. To do this, power off the TinyZero using the slide switch. Plug the USB cable into the TinyZero and your computer. Then press and hold the button on the bottom on the TinyZero while sliding the switch to the ON position. Then try uploading your program to the TinyZero and it should work. You may need to try this several times if it does not work the first time. All batteries are sold separately DOWNLOADS SAMD21 Datasheet DRV8834 Datasheet PCA9544A Datasheet LSM9DS1 Datasheet ATtiny841 Datasheet Eagle Files Schematic CAD 3D and 2D Files