I see that Bluetooth LE modules like the Bluegiga BLE112 sell for around $20, whilst HM-10 sell for just $4.
Beside the FCC certification, what makes the BLE112 a superior product? The both have onboard the CC2541, which is the most critical component. Are there usually pitfalls with cheap modules like the HM-10 though?
Is there a catch somewhere?
Best Answer
Here are the differences I could find:
The HM-10 comes out better on price and slightly higher transmit power. The BLE-112 comes out better on all other measures.
The HM-10 document you linked to said the HM-10 had FCC and CE certification. However when I tried to follow the links to find the FCC ID's, there was no information. The FCC and CE certifications for the BLE-112 are on the Bluegiga site.
The BLE-113 is similar to the BLE-112, except it is 1/3 smaller (16 x 9 x 2.1), draws less power, and uses the CC2541 instead of the CC2540. However the BLE-113 has slightly lower transmit power (max 0 dBm) and a reduced range of 100 meters. The BLE-113 also deosn't have the USB interface (all the others are the same as the BLE-112). At $13.45, the BLE-113 is slightly cheaper than the BLE-112.