Telink mesh enables synchronized trainer

WoSport recently launched a Synchronized trainer set for team activities, shooting training and tactical games. The trainer set includes 3 training targets, Bluetooth monitor, lock adaptor, tracer and a charging cable.

Synchronized trainer set

Telink Inside

I was quite surprised to spot a Telink Semiconductor TLSR8253 in the product teardown. Both Bluetooth monitor and training targets have Telink IC embedded inside them. The user can control the training targets through a user app. The app also connects and exchange information with the Bluetooth monitor.

Up to 32 training targets can be networked over a distance of 320m

I felt intrigued to learn the user app can connect and control up to 32 training sets. The distance between each target can be up to 10m. If each target is separated by 10m in a straight line, the effective distance can reach 320 meters.

My hunch is that WoSport uses Telink mesh protocol because standard Bluetooth mesh does not support connections.

Up to 32 training Targets can be interconnected with distance up to 320m

Telink TLSR8253

Telink has a proprietary 32-bit core with a maximum clock frequency of 48 MHz. The device has on-chip 512 KB flash and 48 KB SRAM. The device is available in two package variants: QFN-32 and TSSOP16.

Telink LSR8253

TLSR8253 radio transceiver can transmit output power up to +10 dBm and has an excellent sensitivity of -96 dBm @ BLE 1 Mps mode.

Telink Mesh protocol features

TLSR8253 radio supports BLE 5.0, BLE Mesh and also Telink Mesh proprietary protocol. Telink Mesh topology based on Bluetooth LE enables applications that involve multiple inter-connected devices or sensor nodes. The proprietary mesh protocol can have up to 128/256 devices in a network. Other interesting features include synchronized control and real-time status updates.