BLE Module
Q. Availability of APPs, APKs and computer host software for testing.
A. We can provide test APPs(including iOS and Android) and computer host software.
Q. How is the stability of your wireless connectivity modules?
A. About the stability, we have been in the RF field for more than 15 years, and we have rich experience in RF design and production, all modules sold must undergo rigorous RF testing, we ship around 600KPCS Bluetooth modules every month, the stability of the modules isn’t a problem.
Q. Do you provide development related files?
A. Yes, we’ll provide all the development files, including hardware and software related files, datasheets, and certifications.
Q. What are the communication distance of the BLE modules?
A. The communication distance in the outdoor open environment is about 200 meters, and the indoor environment is about 12 meters.
Q. Can your Bluetooth modules communicate with other manufacturers’ Bluetooth modules?
A. Our BLE modules can only communicate with our own BLE modules and cannot communicate with other manufacturers’ BLE modules due to different firmware logistics.
Q. Can we develop the firmware and burn into the module by ourselves? Is there any write protection or something?
A. Yes, you can develop the firmware and burn it into the module by yourselves, but you need to unlock the chip before you burn your own firmware.
Q. Any suggestions about drawing the PCB board?
A.
- It is recommended to offer the module with a DC-stabilized power supply, a tiny power supply ripple coefficient, and a reliable ground. Please pay attention to the correct connection between the positive and negative poles of the power supply. Otherwise, the reverse connection may cause permanent damage to the module;
- Please ensure the supply voltage is between the recommended values. The module will be permanently damaged if the voltage exceeds the maximum value. Please ensure a stable power supply and no frequently fluctuating voltage.
- When designing the power supply circuit for the module, it is recommended to reserve more than 30{26b90a1b09ad87680be0250a9ed535693d6ce613e712f5c5f7361084b6682d36} of the margin, which is beneficial to the long-term stable operation of the whole machine. The module should be far away from the power electromagnetic, transformer, high-frequency wiring, and other parts with large electromagnetic interference.
- The bottom of the module should avoid high-frequency digital routing, high-frequency analog routing, and power routing. If it has to route the wire on the bottom of the module, for example, it is assumed that the module is soldered to the Top Layer, the copper must be spread on the connection part of the top layer and the module, and be close to the digital part of the module and routed in the Bottom Layer (all copper is well-grounded).
- Assuming that the module is soldered or placed in the Top Layer, it is also wrong to randomly route the Bottom Layer or other layers, which will affect the spurs and receiving sensitivity of the module to some degree;
- Assuming that there are devices with large electromagnetic interference around the module, which will greatly affect the module performance. It is recommended to stay away from the module according to the strength of the interference. If circumstances permit, appropriate isolation and shielding can be done.
- Assuming that there are routings of large electromagnetic interference around the module (high-frequency digital, high-frequency analog, power routings), which will also greatly affect the module performance. It is recommended to stay away from the module according to the strength of the interference. If circumstances permit, appropriate isolation and shielding can be done.
- It is recommended to stay away from devices whose TTL protocol is the same 2.4 GHz and 5 GHz physical layer, for example: USB 3.0.
- The antenna installation structure has a great influence on module performance. It is necessary to ensure the antenna is exposed and preferably vertically upward. When the module is installed inside the case, a high-quality antenna extension wire can be used to extend the antenna to the outside of the case.
- The antenna must not be installed inside the metal case, which will cause the transmission distance to be greatly weakened.
Q. Where can I get samples?
A. You can contact us through info@rfcrazyiot.com to get samples.
LoRa Module
Q. What chips are your LoRa Modules based on?
A. Our LoRa modules are based on ST STM32WLE5JC(the first LoRa SoC), Semtech LLCC68, SX1262, SX1268, and LoRa SoC ASR6601 from ASR Micro.
Q. What are the frequency of your LoRa Modules?
A. 150 MHz ~ 960 MHz.
Q. What types of LoRa modules do you have?
A. We have two types of LoRa modules, the front-end series, including LLCC68, SX1262, and SX1268; and the ones with SoC, including ST STM32WLE5JC and ASR6601.
.
Q. What kinds of the antennas do you have?
A. All of our LoRa modules are external antennas with IPEX connector.
Q. Do you provide development files?
A. We can provide you with our LoRa module datasheets, the main chips of our LoRa modules’ related development files.
LoRa + BLE Module
Q. How does LoRa + BLE combo module work?
A. We combine LoRa and BLE chips in one module, then you don’t need an external MCU for LoRa; LoRa is for long-range communication, and BLE is for short-range communication, BLE transfers the LoRa data to the mobile devices.
Q. How many types of LoRa + BLE modules do you have?
A. We have four kinds of LoRa + BLE modules, including Onmicro HS6621 + Semtech LLCC68, Nordic nRF52810 + Semtech LLCC68, Nordic nRF52832 + Semtech SX1262, Nordic nRF52832 + Semtech SX1268.
Q. Are all of your LoRa + BLE combo modules hardware without firmware inside?
A. We have four LoRa + BLE combo modules, one of them RC21L68A has AT commands inside, and the rest three are hardware versions.
Q. How are the antennas?
A. All the LoRa + BLE combo modules have two IPEX connectors, one is for LoRa, and another one is for BLE.
Wi-Fi Module
Q. What are the main chips of your Wi-Fi modules?
A. We have five kinds of Wi-Fi modules, including RC3220SF based on TI CC3220SF, RC3235S 2.4 GHz and 5.8 GHz dual-band Wi-Fi module based on TI CC3235S, RC3235SF 2.4 GHz and 5.8 GHz dual-band Wi-Fi module based on TI CC3235SF, RC5952S BLE + Wi-Fi combo module based on ASR ASR5952S, RC2028N BLE + Wi-Fi combo module based on Beken BL2028N.
Q. How is the firmware?
A. All the Wi-Fi modules are hardware versions, you need to develop the firmware by yourselves.
Q. How are the certifications?
A. We have regular certifications like CE, FCC, RoHS and Reach.
Q. What are the general parameters of PCB on-board antenna?
A. Impedance: 50 Ω, Peak Gain: 3.0 dBi.
ZigBee Module
Q. Are your ZigBee Module with embedded firmware?
A. No, we only have hardware versions.
Q. What are the main chips of your ZigBee modules?
A. Our ZigBee chips are from TI CC2530, Silicon Labs EFR32 series, PHYPlus PHY6222.
Q. Do you have certifications?
A. Yes, we have regular certifications like CE, FCC, RoHS & Reach.
Q. What are the general parameters of PCB on-board antenna?
A. Impedance: 50 Ω, Peak Gain: 3.0 dBi.
Q. Are your ZigBee modules support ZigBee 3.0?
A. Yes, they support ZigBee 3.0.
Sub-1 GHz Module
Q. What are the main chips of your Sub-1 GHz modules?
A. We have two Sub-1 GHz modules, including RC1310A based on TI CC1310, RC2300A from Hoperf CMT2300A.
Q. What frequency do your Sub-1 GHz modules support?
A. 410 ~ 490 MHz, 868 MHz, 915 MHz.
Q. What are the general parameters of PCB on-board antenna?
A. Impedance: 50 Ω, Peak Gain: 3.0 dBi.
Q. Do you have certifications?
A. We have regular certifications, including CE, FCC, and RoHS.
2.4 GHz Module
Q. What are the main chips of your 2.4 GHz modules?
A. Our 2.4 GHz module is RC24R1AP based on Si24R1 and GC1101.
Q. What frequency do your 2.4 GHz modules support?
A. 2403 ~ 2480 MHz.
Q. What are the general parameters of PCB on-board antenna?
A. Impedance: 50 Ω, Peak Gain: 3.0 dBi.
Q. Do you have certifications?
A. We have regular certifications, including CE, FCC, and RoHS.
Others
Q. What are the main chips of your 2.4 GHz modules?
A. Our 2.4 GHz module is RC24R1AP based on Si24R1 and GC1101.
Q. What frequency do your 2.4 GHz modules support?
A. 2403 ~ 2480 MHz.
Q. What are the general parameters of PCB on-board antenna?
A. Impedance: 50 Ω, Peak Gain: 3.0 dBi.
Q. Do you have certifications?
A. We have regular certifications, including CE, FCC, and RoHS.