How Electric Imp’s Modules Compare
There are currently five hardware modules on the market that contain embedded Electric Imp technology: the imp003, imp004m, imp005 and impC001. The impC002 and imp006 will be made available shortly. 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)
|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
**From release 42
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