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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), P# o3 K1 f8 c
- #include <ESP8266HTTPClient.h>
/ y! S C4 b; r8 C( k/ l. B& l - #include <ESP8266WiFi.h>
; n5 F) G7 U8 d9 Q& x - #include <ESP8266WiFiMulti.h>
6 q9 J" L5 h. L; i) e - #include <ESP8266WebServer.h>
+ Z( J1 Y b# m, g - #include <arduino.h>& w7 x) E r, M& v
- ESP8266WiFiMulti WiFiMulti;) V$ A. b7 A- O# C! r
- ESP8266WebServer server(80);
+ C7 E0 n& J* E8 e3 Z - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";5 Y, X/ s* y, C7 q8 |' J
- ADC_MODE(ADC_VCC);
0 [& i0 ?2 S/ j' h( [% c - void setup() {% ]* D$ ]1 P8 a5 ~! |+ M+ j
- Serial.begin(115200);( u& u; g( E6 K# X& l( I. B
- Serial.print("\r\n\n");% l: d4 u% p, q o
- pinMode(2,OUTPUT);
$ \- T! M1 K+ `, Q - // WIFI
4 a# v( I$ m; c0 L4 Y - WiFi.mode(WIFI_STA);6 O- q F2 V; x2 Y" n
- WiFi.hostname("Sparkle");& I7 W6 ?6 `6 E
- WiFiMulti.addAP("wifi ssid", "wifi password"); p4 l$ Q4 k- s4 S( {0 l
- int tryNum = 15;
6 |1 T+ M9 p8 }0 P' A7 x6 b - Serial.print("Connect WiFi");
7 G0 Z0 k- r2 T& J - while (WiFiMulti.run() != WL_CONNECTED) {4 P: A. I) I; C6 W
- digitalWrite(2,0);
1 i! s) r* l6 ~% T3 Z8 m - delay(200);
7 l4 |/ ?9 e& y - digitalWrite(2,1);
/ h3 F% R& r; _6 e3 G& I9 Y- U - delay(300);* `( P8 }7 T6 ?
- Serial.print(".");
6 B: R" d, v5 |8 I8 t% A) g - tryNum--;% o$ B F$ ]5 k6 x' ~5 } k
- if (tryNum == 0) {( q1 [- N6 }8 | M Q0 @, X+ f
- // 1min
) } Z0 M7 {; H0 t% Q4 a; r! C/ z0 r - // ESP.deepSleep(60e6);6 H8 \+ | K7 r2 N8 ^% s7 s+ J
- ESP.deepSleep(0);
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- }9 V6 M& h9 z5 T( P7 V
- Serial.print("\r\n");5 Z6 \. s, H5 v$ q) c: _
- digitalWrite(2,1);7 U( ~5 n) ]0 n r( b% i
- Serial.print("IP address : ");
; _% g& p% X' F! c* A9 O3 {. s- Y5 S - Serial.println(WiFi.localIP());2 B1 T' x& D' |& y. P/ f
- server.on("/", HTTP_GET, [](){
' |5 n( m, v& H1 t" c- h7 I+ _ - server.sendHeader("Connection", "close");# Z5 J; b* f# b" j& D5 T" d# ^ d' O
- server.send(200, "text/html", serverIndex);4 u; }! O6 J; T1 V9 e5 |2 H
- });
. _1 w. L# r0 |2 B - server.on("/update", HTTP_POST, [](){
J6 ~6 }' o* Y1 w& g! ~3 N* M - server.sendHeader("Connection", "close");
; ?% U$ j8 Y& z! \1 L; ~ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
$ f- {. p2 A0 g8 L4 s - ESP.restart();# [& v/ N) R8 v
- },[](){
/ \) }* h% J, o/ ?3 E - HTTPUpload& upload = server.upload();9 G0 x. n. q v( a
- if(upload.status == UPLOAD_FILE_START){9 {# w$ q o! n% X) G/ N
- Serial.setDebugOutput(true); E: k! b8 a! P8 J1 B2 _- O
- Serial.printf("Update: %s\n", upload.filename.c_str());/ _& n) f; e* B+ o6 q, g
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;& n( [# e0 i; C% f1 l, y
- if(!Update.begin(maxSketchSpace)){
9 C7 U, u' A( w# \ - Update.printError(Serial);6 P3 d5 {; w! a1 d5 }
- }: J' J+ v* @( @. P, j8 E
- } else if(upload.status == UPLOAD_FILE_WRITE){3 @( I! C- u; q4 u' d+ W2 @
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
d. D& q! k c) U4 W9 `" y) L( }# [5 m - Update.printError(Serial);# `) c/ L8 p; f4 H
- }4 x( b% X/ K: m* z, M
- } else if(upload.status == UPLOAD_FILE_END){) x6 ]2 k" b. w+ Y8 G; p
- if(Update.end(true)){& _5 n1 v; W& }( u
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);4 A @, x9 W U* J# u: @, {8 j" d* X8 b
- } else { F& W; a9 h2 e" `% v. D
- Update.printError(Serial);& P+ G k3 P- T A# e
- }% t2 _( P" w9 S: j$ Y+ i9 ~. f
- Serial.setDebugOutput(false);' l4 l R Y: f7 v! `7 D- g- j
- }
6 b0 T. [& ?/ f3 C4 U - yield();+ S' d% o. J3 W3 V
- });
2 X( t b0 c, @2 U3 M - Y% [) w9 x3 E' j: c( z. w
- digitalWrite(2,0);
5 i& @2 E [# n2 Y - mainAction();: D3 t3 ?1 f9 Q& `/ e3 Z5 m
- if (digitalRead(0)){8 Q) Y5 C" ?: l
- ESP.deepSleep(0);
0 N( q' l1 s0 u5 t& M. |, A! ^% R4 f - } else {% G: r# z' A/ C9 u
- server.begin();
( `9 z% J- M$ y: ?7 w0 K - }
5 X. g u/ v% |. r. G; C - }
9 j$ A, E, l9 W/ k" u3 U - void loop() {
1 o; d: S! ~5 M! r, R - server.handleClient();
g& J% u/ I- L! C - delay(1);
% q' h M/ D6 ^4 B) W - }
) g4 I2 a; {/ O C, u$ g - String doGet(String url){/ S2 H5 `) Y; }: }# T- z$ q
- if ((WiFiMulti.run() == WL_CONNECTED)) {7 e8 e4 z% w) c- _7 x G1 R4 n# g" e
- HTTPClient http;
1 H ^* x/ y; Q; Q - Serial.println("[HTTP] begin...");/ u) \/ k. K( r! `8 ]9 y
- if (url.startsWith("https")) {$ |; n1 |4 G* J% Z( o
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");! ]& v/ y( W s+ [2 j1 x. M3 c
- } else {/ b3 a# w% {5 k+ h
- http.begin(url);
7 |7 O& f n" B/ e - }
8 y7 U2 J( _# a5 K5 B: U& E$ a4 F) R - Serial.println("[HTTP] GET...");$ V0 o& P; ^/ J( Y2 ]
- int httpCode = http.GET();1 y$ b0 C6 H! `6 O' D
- if (httpCode > 0) {! N: B# H. z- N# U% A
- Serial.printf("[HTTP] code: %d\n", httpCode);
4 g7 l4 r& @$ T. i- o - if (httpCode == HTTP_CODE_OK) {
* I. a1 @2 Z& C$ |( q8 c9 n - String payload = http.getString();
! p, e i6 ?1 P; ^3 n" Y, C o - Serial.println(payload);
9 T5 |4 P7 F4 W; `7 T9 I! ~. @ - Serial.print("\r\n");
) X! t& _! W0 [5 r - return payload;" x4 q/ I' p! q# k- C
- }1 C% _& o# @3 ^2 ?- }
- } else {
! J3 o' ~3 z Q5 ~# `; O - Serial.printf("[HTTP] GET... failed, error: %s\n",
4 i+ I2 V5 P. Z7 g - http.errorToString(httpCode).c_str());
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- http.end();8 U$ e- f- h; h% u
- return "";, J2 ]) n% Z) \, ~ x6 v
- }
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- void mainAction() {4 I) C: g3 v+ |4 u
- // 发送请求. }/ x8 l3 r$ ^
- doGet("http://google.cn");
2 p. Q# q3 A. X - }
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