Z33-CA4RF Module

Programming manual for Serene Innovations CA4 2.4 Ghz Transceiver Module (using nRF24L01+ Transceiver chip): Operating conditions Supply voltage: 3 +/-.3 vdc, 30 ma max Operating Temperature: 0 to 50 ºC Data and Control Interface The data and control interface gives you access to all the features in the nRF24L01+. The data and control interface consists of the following six 5-Volt tolerant digital signals: • IRQ (this signal is active low and controlled by three maskable interrupt sources) • CE (this signal is active high and used to activate the chip in RX or TX mode) • CSN (SPI signal) • SCK (SPI signal) • MOSI (SPI signal) • MISO (SPI signal) Using 1 byte SPI commands, you can activate the nRF24L01+ data FIFOs or the register map during all modes of operation. The SPI is a standard 4-wire SPI (8-bit command) with a maximum data rate of 10Mbps. Every new command must be started by a high to low transition on CSN. The STATUS register is serially shifted out on the MISO pin simultaneously to the SPI command word shifting to the MOSI pin. The serial shifting SPI commands is in the following format: <Command word: MSBit to LSBit (one byte)> <Data bytes: LSByte to MSByte, MSBit in each byte first> RX mode The RX mode is an active mode where the nRF24L01+ radio is used as a receiver. To enter this mode, the nRF24L01+ must have the PWR_UP bit, PRIM_RX bit and the CE pin set high. In RX mode the receiver demodulates the signals from the RF channel, constantly presenting the demodulated data to the baseband protocol engine. The baseband protocol engine constantly searches for a valid packet. If a valid packet is found (by a matching address and a valid CRC) the payload of the packet is presented in a vacant slot in the RX FIFOs. If the RX FIFOs are full, the received packet is discarded. The nRF24L01+ remains in RX mode until the MCU configures it to standby‐I mode or power down mode. However, if the automatic protocol features in the baseband protocol engine are enabled, the nRF24L01+ can enter other modes in order to execute the protocol. In RX mode a Received Power Detector (RPD) signal is available. The RPD is a signal that is set high when a RF signal higher than ‐64 dBm is detected inside the receiving frequency channel. The internal RPD signal is filtered before presented to the RPD register. The RF signal must be present for at least 40μs before the RPD is set high. Enhanced ShockBurst receive payload 1. Select RX by setting the PRIM_RX bit in the CONFIG register to high. All data pipes that receive data must be enabled (EN_RXADDR register), enable auto acknowledgement for all pipes running Enhanced ShockBurst™ (EN_AA register), and set the correct payload widths (RX_PW_Px registers). Set up addresses as described in item 2 in the Enhanced ShockBurst transmitting payload above. 2. Start Active RX mode by setting CE high. 3. After 130μs nRF24L01+ monitors the air for incoming communication. 4. When a valid packet is received (matching address and correct CRC), the payload is stored in the RX-FIFO, and the RX_DR bit in STATUS register is set high. The IRQ pin is active when RX_DR is high. RX_P_NO in STATUS register indicates what data pipe the payload has been received in. 5. If auto acknowledgement is enabled, an ACK packet is transmitted back, unless the NO_ACK bit is set in the received packet. If there is a payload in the TX_PLD FIFO, this payload is added to the ACK packet. 6. MCU sets the CE pin low to enter standby-I mode (low current mode). 7. MCU can clock out the payload data at a suitable rate through the SPI. 8. nRF24L01+ is now ready for entering TX or RX mode or power down mode. TX mode The TX mode is an active mode for transmitting packets. To enter this mode, the nRF24L01+ must have the PWR_UP bit set high, PRIM_RX bit set low, a payload in the TX FIFO and a high pulse on the CE for more than 10μs. The nRF24L01+ stays in TX mode until it finishes transmitting a packet. If CE = 0, nRF24L01+ returns to standby‐I mode. If CE = 1, the status of the TX FIFO determines the next action. If the TX FIFO is not empty the nRF24L01+ remains in TX mode and transmits the next packet. If the TX FIFO is empty the nRF24L01+ goes into standby‐II mode. The nRF24L01+ transmitter PLL operates in open loop when in TX mode. It is important never to keep the nRF24L01+ in TX mode for more than 4ms at a time. If the Enhanced ShockBurst features are enabled, nRF24L01+ is never in TX mode longer than 4ms. Enhanced ShockBurst transmitting payload 1. Set the configuration bit PRIM_RX low. 2. When the application MCU has data to transmit, clock the address for the receiving node (TX_ADDR) and payload data (TX_PLD) into nRF24L01+ through the SPI. The width of TX-payload is counted from the number of bytes written into the TX FIFO from the MCU. TX_PLD must be written continuously while holding CSN low. TX_ADDR does not have to be rewritten if it is unchanged from last transmit. If the PTX device shall receive acknowledge, configure data pipe 0 to receive the ACK packet. The RX address for data pipe 0 (RX_ADDR_P0) must be equal to the TX address (TX_ADDR) in the PTX device. 3. A high pulse on CE starts the transmission. The minimum pulse width on CE is 10μs. 4. nRF24L01+ ShockBurst:  Radio is powered up.  16MHz internal clock is started.  RF packet is completed (see the packet description).  Data is transmitted at high speed (1Mbps or 2Mbps configured by MCU). 5. If auto acknowledgement is activated (ENAA_P0=1) the radio goes into RX mode immediately, unless the NO_ACK bit is set in the received packet. If a valid packet is received in the valid acknowledgement time window, the transmission is considered a success. The TX_DS bit in the STATUS register is set high and the payload is removed from TX FIFO. If a valid ACK packet is not received in the specified time window, the payload is retransmitted (if auto retransmit is enabled). If the auto retransmit counter (ARC_CNT) exceeds the programmed maximum …

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EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS EUT with Testing Jig Top View EUT location Test Jig Bottom View EUT – Top View EUT – Bottom View

EXHIBIT A - FCC ID LABELING AND LOCATION FCC ID Label Proposed FCC ID Label Location The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

EXHIBIT C - EUT EXTERNAL PHOTOGRAPHS EUT – Shielding off Top View PCB antenna EUT – Bottom View

Note: This test report is prepared for the customer shown above and for the equipment described herein. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP*, or any agency of the Federal Government. * This report contains data that are not covered by the NVLAP accreditation and are marked with an asterisk “★” (Rev.2) FCC PART 15.249 TEST REPORT For Serene Innovations, Inc. 14731 Carmenita Road, Norwalk, CA, USA FCC ID: Z33-CA4 Report Type: Original Report Product Type: RF module Test Engineer: Allan An Report Number: RSZ110921006-00 Report Date: 2011-12-09 Reviewed By: Alvin Huang EMC Engineer Test Laboratory: Bay Area Compliance Laboratories Corp. (Shenzhen) 6/F, the 3rd Phase of WanLi Industrial Building, ShiHua Road, FuTian Free Trade Zone Shenzhen, Guangdong, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ110921006-00 FCC Part15.249 Page 2 of 11 TABLE OF CONTENTS GENERAL INFORMATION.......................................................................................................................................3 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) .....................................................................................3 OBJECTIVE...................................................................................................................................................................3 RELATED SUBMITTAL(S)/GRANT(S).............................................................................................................................3 TEST METHODOLOGY..................................................................................................................................................3 TEST FACILITY.............................................................................................................................................................3 SYSTEM TEST CONFIGURATION ..........................................................................................................................5 JUSTIFICATION.............................................................................................................................................................5 EQUIPMENT MODIFICATIONS.......................................................................................................................................5 SPECIAL ACCESSORIES.................................................................................................................................................5 CONFIGURATION OF TEST SETUP.................................................................................................................................5 BLOCK DIAGRAM OF TEST SETUP................................................................................................................................5 SUMMARY OF TEST RESULTS ...............................................................................................................................6 FCC§15.203 - ANTENNA REQUIREMENT..............................................................................................................7 APPLICABLE STANDARD..............................................................................................................................................7 ANTENNA CONNECTOR CONSTRUCTION......................................................................................................................7 FCC§15.205(A) §15.209(A) §15.249(A) §15.249(C) §15.249(D) §15.35 - RADIATED EMISSIONS .....................8 APPLICABLE STANDARD..............................................................................................................................................8 MEASUREMENT UNCERTAINTY....................................................................................................................................8 TEST EQUIPMENT SETUP..............................................................................................................................................8 EUT SETUP..................................................................................................................................................................9 TEST PROCEDURE........................................................................................................................................................9 CORRECTED AMPLITUDE & MARGIN CALCULATION.................................................................................................10 TEST EQUIPMENT LIST AND DETAILS.........................................................................................................................10 TEST RESULTS SUMMARY..........................................................................................................................................10 TEST DATA................................................................................................................................................................10 Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: RSZ110921006-00 FCC Part15.249 Page 3 of 11 GENERAL INFORMATION Product Description for Equipment under Test (EUT) The Serene Innovations Inc.’s product, model number: CA4 (FCC ID: Z33-CA4), or the "EUT" in this report was a RF module, which was measured approximately: 2.5 cm (L) x 1.6 cm (W) x 0.8 cm (H), rated input voltage: DC 3V. Technical information Frequency band: 2422 MHz Modulation Type: GFSK * All measurement and test data in this report was gathered from production sample serial number: 1109060 (Assigned by BACL, Shenzhen). The EUT was received on 2011-09-21. Objective This report is prepared on behalf of Serene Innovations Inc. in accordance with Part 2, Subpart J, and Part 15, Su…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Radiated Emissions