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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)5 V; Z7 T5 v5 e0 P! _( B9 ?
- #include <ESP8266HTTPClient.h>
/ c5 _; d0 s" c/ M: ~$ t4 | - #include <ESP8266WiFi.h>% q5 `. }5 f' n8 ~. S1 `
- #include <ESP8266WiFiMulti.h>
% k! P- r2 V; f/ a3 b - #include <ESP8266WebServer.h>
# [8 v* {9 y& o( U$ N - #include <arduino.h>
1 V+ Z5 l. a' t5 _/ s9 V+ Z - ESP8266WiFiMulti WiFiMulti;
- x8 b, [( |: B# ? - ESP8266WebServer server(80);
/ J" n% C3 ^$ ^1 W @7 o7 V$ | - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: g9 k" u r U. \; S# Y - ADC_MODE(ADC_VCC);/ I& K, c0 i, w
- void setup() {
5 Q( p1 h% S3 z7 @ - Serial.begin(115200);
" Y+ J( p8 K$ I: ^6 u4 j; z - Serial.print("\r\n\n");' J5 T! m! s) F/ t z( }
- pinMode(2,OUTPUT);1 S+ \, a- [4 Z+ Y- n, d
- // WIFI; S `8 K! F( l) F" e9 o
- WiFi.mode(WIFI_STA);, C$ B# x9 L5 }9 ]3 }2 D: R6 i7 A' g
- WiFi.hostname("Sparkle");: C+ @5 M- ^' P( c6 Y n
- WiFiMulti.addAP("wifi ssid", "wifi password");0 K2 G% g6 v+ {/ e
- int tryNum = 15;
2 Z, X, d( I/ d - Serial.print("Connect WiFi");
% ?" g7 d; O7 a3 j; s - while (WiFiMulti.run() != WL_CONNECTED) {8 {5 J6 }+ s; Z. T
- digitalWrite(2,0);6 C& g5 L4 g6 d F
- delay(200);
. q7 u% \5 r6 b8 o* Y$ u - digitalWrite(2,1);4 @; ~$ v3 t7 e. u* z
- delay(300);
) L1 |, [: N: m5 a4 z5 q - Serial.print(".");# L9 w0 ^/ ^ v; M) X2 A
- tryNum--;* Z: ?) P& N7 f" X! y* U
- if (tryNum == 0) {) @8 q3 t8 p f# p# I
- // 1min! K5 O4 W" _" t5 b, K2 c4 e
- // ESP.deepSleep(60e6);
f" P$ j: L) g7 N/ ~6 T - ESP.deepSleep(0);" C% b, K* f1 F
- }
( P/ X- f' U r) o# k O: C - }# M" C/ I. e9 h9 E5 t
- Serial.print("\r\n");
! y+ i" L9 P# @& n3 p$ e" S - digitalWrite(2,1);# R; q7 V0 X) A& q9 Z4 j
- Serial.print("IP address : ");3 u# ]- Z0 J" h9 c
- Serial.println(WiFi.localIP()); y% R3 N3 d8 B& A' `# W9 u
- server.on("/", HTTP_GET, [](){
3 d# h- O. G9 w. X - server.sendHeader("Connection", "close");+ [+ v( E. j2 X( Z
- server.send(200, "text/html", serverIndex);
~! W1 p+ P9 g - });
2 U# s. [: N0 ]. S* _- f* c" K - server.on("/update", HTTP_POST, [](){- l- R; d8 l/ Z7 Z/ P
- server.sendHeader("Connection", "close");
! V# O+ Q4 S7 J$ v) @- D* f. v - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
) m0 P9 ?; H9 g& x- d - ESP.restart();( G+ r! T6 B5 s# G m
- },[](){1 R5 [3 q4 f6 s- P- Z
- HTTPUpload& upload = server.upload();: @3 Q4 ?* J8 [3 e3 S: Z t3 X
- if(upload.status == UPLOAD_FILE_START){
1 V; U! i: g2 B" C! Q1 [8 j' r - Serial.setDebugOutput(true);
! M* n9 m% ` ^2 q - Serial.printf("Update: %s\n", upload.filename.c_str());
( F( B9 q8 [6 s' M1 o - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
2 x( ?9 k) l- {2 Z Y! |) G - if(!Update.begin(maxSketchSpace)){
1 l+ c& X. c, J0 i3 b8 l - Update.printError(Serial);1 w8 S2 h; s3 E4 Q; m9 P& z/ b. E
- }
; B+ s; h7 v9 _( Q - } else if(upload.status == UPLOAD_FILE_WRITE){* K/ i0 C$ Y8 `2 T
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){" Q5 h) w: i2 V0 U
- Update.printError(Serial);
}. Q4 Y+ o- t4 {6 i9 E - }
3 e' K! e* C6 p F- o0 d2 D - } else if(upload.status == UPLOAD_FILE_END){& [' H+ K9 V1 E. D7 z$ G
- if(Update.end(true)){9 M \/ h$ f% I: @$ H
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);' t! J% k z4 W7 P5 o
- } else {
4 Z* V8 [2 G) M; G5 S c1 V - Update.printError(Serial);' M6 w: {' X$ j- H. W
- }
& F6 I8 @& ?" a3 M' S - Serial.setDebugOutput(false);) q& m& H3 t% W1 _" V$ `4 ]
- }
0 ?$ a8 y* V6 F+ H5 o - yield();
5 R8 h3 y" ]9 K - });- J! X- l' m6 ?: H! T
-
; g2 f6 C. g& s& ^ - digitalWrite(2,0);( ~" Q; I8 g: V W' Y
- mainAction();/ S. P \ d& E0 _! f
- if (digitalRead(0)){
+ \# W. x2 Z- w& F; M, s S% l! r - ESP.deepSleep(0);
2 e4 F. P4 L5 `, Q2 s# u - } else { a) r5 c% Q, _" ~. i
- server.begin();* |; ]: ]- x1 K! m
- }5 L: T P9 }5 i8 b( C4 D
- }
! L l9 Y; L5 m3 {2 ?. i0 Z1 L/ J - void loop() {) M0 V7 w6 [5 N% E* }; B& w
- server.handleClient();% A$ t) s9 n4 j9 n3 }6 l) h
- delay(1);6 q, g; t3 v2 | ~
- }. e, |& }3 I+ v
- String doGet(String url){% K2 P$ q) F0 O u. v: |2 ^, b
- if ((WiFiMulti.run() == WL_CONNECTED)) {
% j2 i9 R7 o5 r: J - HTTPClient http;
* u K8 o% y" |! j" G) k, ` - Serial.println("[HTTP] begin..."); d' @" O; S! F) `4 z+ U
- if (url.startsWith("https")) {* q: H# n( C! ^, _1 _
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, i' b1 d: Q2 z4 E& F& \8 N# _# q - } else {* q5 ?0 I- z5 t& w1 J" a) h9 V% J
- http.begin(url);
1 ^) Q6 K1 s2 g - }: K+ |; U3 C4 O& s5 \( k
- Serial.println("[HTTP] GET...");9 y7 o, I4 V5 P' d/ l" C1 f% i
- int httpCode = http.GET();
6 G0 ^4 H) `6 v - if (httpCode > 0) {
: m& y" M0 Q; `- n8 n G- D - Serial.printf("[HTTP] code: %d\n", httpCode);
6 R& a4 f' h# a4 y4 ^+ p( C - if (httpCode == HTTP_CODE_OK) {
, @5 i+ Q" k9 [3 }8 m - String payload = http.getString();
; V, w( d5 c' R% b/ x7 a - Serial.println(payload);2 n& w. ~3 T* o% k6 ]5 r. _
- Serial.print("\r\n");
7 [0 [2 F* P* M8 f. G - return payload;7 x' |, P+ f2 Z1 E
- }
- l4 b5 W. ?; f) G* Z+ ] - } else {
5 D& Z" E: M. w) e+ p6 T+ [ - Serial.printf("[HTTP] GET... failed, error: %s\n",9 m* P" _1 H5 `- a! c! s" ^# H
- http.errorToString(httpCode).c_str());8 B8 q( P6 U$ w5 d
- }. D2 O0 a- A1 D" m1 |4 x
- http.end();, j$ F: c% m9 S, Q4 d M, j$ f5 B+ q j
- return "";
- r: ]6 r5 o7 Q0 A" K - }' u; z9 |, X2 n- J& t* X5 L- Y' x- Z
- }
" \) L9 v0 ]9 y - void mainAction() {
% p/ ^ w- j! N1 `- U - // 发送请求! T% f# H& X, u
- doGet("http://google.cn");9 N, Y$ \0 b" W0 w/ _
- }5 m4 e, C5 ]* K" n
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