# Raytac Bluetooth AT-Command Set Module - MDBT42T-AT

**Type:** Product page · **SKU:** WRL-25466 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/raytac-bluetooth-at-command-set-module-mdbt42t-at.html ([markdown](https://core-electronics.com.au/raytac-bluetooth-at-command-set-module-mdbt42t-at.html.md))

Raytac’s MDBT42T-AT is a BT 5.1 stack (Bluetooth® low energy or BLE) module designed based on Nordic nRF52805 SoC solution...

## Pricing

- **Price:** $9.30 (inc GST) — $8.45 AUD, exc GST
- **Quantity discounts:** 5+ $8.20 (exc GST) · 25+ $8.04 (exc GST) · 100+ $7.69 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## Description

Raytac’s MDBT42T-AT is a BT 5.1 stack (Bluetooth® low energy or BLE) module designed based on Nordic nRF52805 SoC solution, which incorporates a UART interface in only peripheral role for data bridge in a compact size.

### Features

- Pre-Loaded with Raytac's AT command firmware (Peripheral / Slave role)
- Nordic nRF52805 SoC Solution
- A recommended 3rd-party module by Nordic Semiconductor.
- BT5.4 & BT5.2 & BT5.1 & BT5 Bluetooth Specification Certified.
- Certifications: FCC, IC, CE, Telec (MIC), KC, SRRC, NCC
- 32-bit ARM® Cortex™ M4F CPU
- 192kB Flash Memory / 24kB RAM
- RoHS & Reach Compliant.
- Dimension:7.2 x 11.2 x 2.05 mm
- 10 GPIO
- Chip Antenna
- Interface: UART
- MTU upto 247 bytes
- Works with MDBT42Q-ATM / MDBT42Q-PATM (Central / Master role)

### Documents

- [Datasheet](https://core-electronics.com.au/attachments/localcontent/_nRF52805__MDBT42T-AT___MDBT42T-PAT_Spec__Ver_4149614ad52.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/W/R/WRL-25466-1.jpg)