The Relay Bit allows your BBC micro:bit to control low and medium current/voltage devices. It's a handy option for controlling devices that could not be directly controlled by micro:bit's Digital I/Os. The standardised shield form factor enables a smooth connection with the micro:bit. The board includes 4 relays for controlling up to 4 different devices, and includes helpful features such as LED indicators and a 90-degree micro:bit connector. Note: micro:bit board not included. Features * 4x High-quality 3V relays for loads up to 2A/24VDC or 2A/120VAC * Control up to 4 devices * 90-degree micro:bit connector * LEDs for each relay status * Standardised shield shape and design * Make your home IoT enabled * Mounting holes provided Board Features Specifications * Channels: 3 * Voltage: 3V * AC control voltage: 120V @ 2A * DC control voltage: 24V @ 2A * Dimensions: 7x4.3x1.2cm (approx) * Weight: 100g (approx) Resources * Product GitHub page * Product video with instructions * Pinout * Relay 1: P12 * Relay 2: P13 * Relay 3: P14 * Relay 4: P15 https://elecena.pl/product/22720141/relay-bit-4-channel-3v-relay-board-for-micro-bit 2023-03-07 https://elecena.pl/product/22720141/relay-bit-4-channel-3v-relay-board-for-micro-bit 2023-12-27 https://elecena.pl/product/22720141/relay-bit-4-channel-3v-relay-board-for-micro-bit 2024-09-19 https://elecena.pl/product/22720141/relay-bit-4-channel-3v-relay-board-for-micro-bit 2024-11-29 https://elecena.pl/product/22720141/relay-bit-4-channel-3v-relay-board-for-micro-bit 2024-11-30 https://elecena.pl/product/22720141/relay-bit-4-channel-3v-relay-board-for-micro-bit 2025-11-28 https://elecena.pl/product/22720141/relay-bit-4-channel-3v-relay-board-for-micro-bit 2025-11-29 https://elecena.pl/product/22720141/relay-bit-4-channel-3v-relay-board-for-micro-bit 2026-03-11