How Electric Imp’s Modules Compare
There are currently four hardware modules on the market that contain embedded Electric Imp technology: the imp003, imp004m, imp005 and imp006. All of these modules are fully compatible with the Electric Imp Platform and existing applications (with trivial modifications — see the imp pin mux pages). The following table shows how these modules compare in terms of their size and the range of functionality they offer.
These modules include impOS™, which is provided by Electric Imp under license and is subject to a commercial software licensing fee that is not included in the module purchase price. For more detailed information on impOS licensing, please see Commercial Software Licensing for Third-Party imp Modules.
For information on ordering any of these products or becoming a distributor, please contact us.
|Part No.||Murata LBWA1ZV1CD||Murata LBEE5ZZ1MD||Murata LBWA1UZ1GC-901|
|Form Factor||Multi-chip module||Board containing multi-chip module plus antenna||Multi-chip module||STM32F423ZHJ6I module
plus required radio(s)
|Size (L x W)||10x7.9mm||21x17.5mm||10x10mm||10x10mm
plus required radio(s)
|SPI||Two channels||Four channels|
|UART||Five channels||Three & a half channels||Three channels||Seven channels|
|I²C||Two channels||Three channels|
|PWM||Seven channels||Six channels||Eight channels|
|Fixed-frequency DAC||Yes||Via Dual-PWM||No||Yes|
|WiFi & Bluetooth||802.11bgn 2.4GHz (20MHz, 1x1), +17dBm max output power, -97dBm best sensitivity. No BLE.||802.11bgn 2.4GHz (20MHz, 1x1), +17dBm max output power, -97dBm best sensitivity. BLE 4.1.||802.11abgn 2.4/5GHz (20MHz/40MHz, 1x1), +17dBm max output power, -98dBm best sensitivity. No BLE||Optional
eg. Murata 1MW (802.11abgn/ac+BLE), Murata 1DX (802.11bgn+BLE)
|Cellular||None||Optional Quectel module†|
|Antenna||External antenna required, PCB design provided||On-board antenna||External antenna required, PCB design provided||Radio-specific|
|Approval||FCC/IC modular approval, CE tested||FCC/IC modular approval, TELEC modular approval, CE tested||FCC/IC modular approval, CE tested||Radios have modular approvals|
|Ethernet||None||10/100Mbps with external RMII PHY||None|
|USB||None||USB 2.0 FS Host||None|
|Core||ARM Cortex M4F||ARM Cortex R4||ARM Cortex M4F|
|Application Code Space||256KB (Approx. 10,000+ lines of code excluding comments)||768KB (Approx. 30,000+ lines of code excluding comments)||512KB (Approx. 20,000+ lines of code excluding comments)|
|Compatibility||Write once, run on any module|
|Power||Low power w. ultra-low power 5µA sleep mode with RTC and GPIO wake, and control of external PSU to maximize battery life in 2 x AA/AAA configurations||Low power w. ultra-low power 9µA sleep mode with RTC and GPIO wake, and control of external PSU to maximize battery life in 2 x AA/AAA configurations||No low power modes||Low power w. ultra-low power 6µA sleep mode with RTC and GPIO wake, <TBD idle on-network|
|Minimum Design Requirement||>=4Mbit SPI flash, phototransistor, bi-color LED, antenna. Load switch and 32kHz xtal for low power mode support||>=8Mbit SPI flash, phototransistor, bi-color LED. 32kHz xtal for low power mode support||>=32Mbit SPI flash, phototransistor, BlinkUp circuit, bi-color LED, 32kHz xtal||>=64Mbit SPI flash, phototransistor, bi-color LED, 32kHz xtal for low power mode support|
*imp003, imp004m, imp005 and imp006 deliver other IO and peripheral bus via GPIO pins; imp005 also has seven dedicated peripheral bus pins.
†Requires impOS 46. impOS 44 supports Quectel BG96 only. For details, please see Design with imp006.
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