<$1 Bluetooth 4.1 Solution

based on this cheap BLE solution, i am planing a body monitoring thermometer , that can be stick on skin , like a Band aid...

Stay focused

the Bluetooth connection works...

the sample board completed, will testing it next week.....

i updated the layout and will make some sample boards soon...

i am hardware engineer and not good at firmware much, if anyone wants to test this board, i am glad to share the PCBA samples as this is really Low cost.  Of course, you bears the shipping fee.