Description Specifications Files 1 KIISU V4BR is an innovative, credit-card-sized alternative to the Flipper Zero, designed to bring immense power into a compact form factor. This versatile development board is the ultimate tool for tech enthusiasts, offering a full suite of wireless, contactless, and remote-control capabilities that fit right into your wallet. Whether you are exploring RFID, NFC, or radio frequencies, KIISU provides endless possibilities in a single card. Fully compatible with Flipper Zero firmwares, this device ensures that users have access to a wide range of existing tools and software. Its powerful dual-core hardware allows for seamless interaction with various digital and physical systems, making it a robust companion for security research, hardware hacking, and automation tasks. SubGhz transceiver: CC1101 with ability to install external antennaNFC reader and emulator: ST25R3916, built-in antennaRFID reader and emulator: Built-in antennaInfrared: Receiver and transmitterGPIO: Pin compatible with Flipper ZeroBluetooth: Bluetooth Low EnergyiButton: SupportedMain MCU: STM32WB55RGV6 up to 80 MHzAux MCU: STM32G431CBU6 up to 170 MHzDigital accelerometer and compass: LSM303AGRTemperature and humidity sensor: GXHTC3CAmbient light sensor: IntegratedGas sensor (optional): BME680 (measures relative humidity, barometric pressure, ambient temperature, and VOC), can be installed by userDigital ranger (optional): VL53xxx, can be installed by userBattery: LIR2032 rechargeablePrimary power: USB Type C KIISU-V4BR Manual EN4.27MBDownload
