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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)
6 Z y- F& c) D& [$ S' n- #include <ESP8266HTTPClient.h>
& G4 a m: k* m! ^! N - #include <ESP8266WiFi.h>" B" l e) H- ^7 S9 T" `
- #include <ESP8266WiFiMulti.h>* ~. C% J' f7 ^- H/ ]
- #include <ESP8266WebServer.h>- h$ L' S' e$ B8 O1 r: c2 w
- #include <arduino.h>' r# ]3 |' l$ U( z' D* p5 J
- ESP8266WiFiMulti WiFiMulti;
* q j- T8 W0 l" Y) a1 N' j - ESP8266WebServer server(80);
5 S7 q2 p: K/ a - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
4 k0 R ~2 }6 ]# F9 Z, k; F& p - ADC_MODE(ADC_VCC);8 n- B3 m6 @! K. F
- void setup() {& [4 E$ x: k: `/ p6 X3 b: J# @
- Serial.begin(115200);9 T. B5 E" J+ {- }& c: o0 }6 j" J, C
- Serial.print("\r\n\n");! P' d9 h$ E! S5 l. Y
- pinMode(2,OUTPUT);
$ {$ a4 N7 z( Q* [" X+ ~* ] - // WIFI i- `4 b7 ?% M
- WiFi.mode(WIFI_STA);
" b/ a# Z% v J: N - WiFi.hostname("Sparkle");- F* K3 j2 a8 r2 _6 S
- WiFiMulti.addAP("wifi ssid", "wifi password");
0 [: }6 V8 Y6 M9 s" ? - int tryNum = 15;1 @) Y7 P: z( R) S9 |6 F
- Serial.print("Connect WiFi");
- K& o( S4 z/ Z( e - while (WiFiMulti.run() != WL_CONNECTED) {1 t/ O# A! p& D
- digitalWrite(2,0);6 s. l6 x+ V# n/ e$ x
- delay(200);
* f) K8 E& n' S R$ E) ^ j - digitalWrite(2,1);
3 Z9 M& a9 v& J, P$ T5 r - delay(300);
1 k( g$ S/ e% @& O6 c" k- ^$ P - Serial.print(".");
- F' J4 W% {5 S Y1 V& B6 p6 q - tryNum--;% v r) y: {8 c5 T% U' [
- if (tryNum == 0) {/ e- G: b1 V' G% }; S# ^6 E0 ?
- // 1min
/ J1 ^7 A* b! m* a- F" h - // ESP.deepSleep(60e6);
: N) l( T( {3 n4 y- _* m' _, J3 j6 [ - ESP.deepSleep(0);7 u# h+ S7 I6 s/ p% X
- }
9 {7 g& h1 Q; b2 N3 b" S - }3 v( J$ }0 c/ _4 z. X, Y
- Serial.print("\r\n");! ~+ e2 s! o1 m5 S/ b
- digitalWrite(2,1);
! F& T3 j9 o5 \: {, t - Serial.print("IP address : ");6 ^3 b3 Z, q" N3 S3 F
- Serial.println(WiFi.localIP());' V8 C4 @2 o' q& N6 R3 Z, h
- server.on("/", HTTP_GET, [](){. O4 H: g) d- E
- server.sendHeader("Connection", "close");
; p [* t: }7 G- B - server.send(200, "text/html", serverIndex);; d( t' Z1 |. C( F T# R& L
- });
6 q6 z6 I/ I! i# F, }6 R; N - server.on("/update", HTTP_POST, [](){
% b" ]" t# F0 s1 W+ k+ ], Q5 Z- h - server.sendHeader("Connection", "close");
& d9 I6 M) W" W- G( {1 b - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
/ k2 {/ p9 c% x0 o& x% D - ESP.restart();
8 M+ T, j. ~+ W1 n J3 E' u - },[](){
: g8 N7 v4 v8 k, {7 C- ~ - HTTPUpload& upload = server.upload();
; H1 s! Y( M/ g% p/ S - if(upload.status == UPLOAD_FILE_START){
1 E: Q% W( j- n5 P) a/ ~* t3 b# \ - Serial.setDebugOutput(true);/ E2 P, N6 `* | n
- Serial.printf("Update: %s\n", upload.filename.c_str());$ z0 O' c' I# f6 h7 f7 }* e- G
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
+ B$ C8 O" B& D# w O - if(!Update.begin(maxSketchSpace)){
3 @/ ?' N/ B7 `7 B- h9 ~8 h - Update.printError(Serial);* G/ t' t& _ T. N, J
- }, H& @' `2 M- n! r& N
- } else if(upload.status == UPLOAD_FILE_WRITE){
( C# w* t! S4 a4 R7 \ - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
) Q: `, l! P0 x0 X" f8 G( L% g - Update.printError(Serial);6 }1 ] o' g8 p5 t3 A' n
- }
/ G2 d( B$ N% p3 i - } else if(upload.status == UPLOAD_FILE_END){( v' M* U$ |5 u* q/ @6 U. X; r T
- if(Update.end(true)){
" S' ~9 D# ~7 @ - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# A- n4 t8 E' x4 r. j
- } else {9 r/ P: ~0 ?+ [7 W! t$ y$ V4 _8 z
- Update.printError(Serial);
% a2 u/ j; g5 ]% R& R - }
/ ?* G# G8 p. h/ H1 r4 | - Serial.setDebugOutput(false);
. g( R6 [8 R5 d5 f - }
8 @6 ~, r. o% Y5 H. s+ y - yield();- w- u F$ q& ], r% g, i
- });
! j* u5 E" C7 q8 S& i% s# |+ ^3 C& ~ - . w, r( a7 j( z& `9 R* e6 x
- digitalWrite(2,0);
" E( q4 U. U: Q3 A7 h - mainAction();
0 R+ r* S2 E3 `4 n - if (digitalRead(0)){& m: z6 B2 a( z9 _; V M) R9 d
- ESP.deepSleep(0);+ o8 f8 r# c8 ^$ f- {
- } else {
' r; J. [3 a4 \: f7 p - server.begin();( m0 ^# V2 h( _; z9 e9 Q
- }7 I" f! H s; z0 T0 W' [
- }
+ @$ U6 f/ [' C - void loop() { `0 T3 L% @' M) b4 D$ m- v7 I4 S/ A" D6 g2 B
- server.handleClient();
3 ]! ~' ?- H% G/ P. K4 j! H. M. c. L - delay(1);
$ |- B5 G# g( y! f( x2 u; w5 o - }
8 @ D4 U7 u6 f5 A# r - String doGet(String url){
; l! M, p& W' H8 [4 m - if ((WiFiMulti.run() == WL_CONNECTED)) {/ V3 D) O; ` Q; |; j. v6 c% s( O7 p
- HTTPClient http;
0 O; D" k/ m' C: f - Serial.println("[HTTP] begin...");
* o( h7 E- h, t - if (url.startsWith("https")) {
* r, V0 t5 @) b - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
. l+ q5 e/ |# M& ^( Q' x6 b; u - } else {. z6 D& D6 r* R4 Q6 n3 ]
- http.begin(url);: P) g+ w K5 L, Y6 x# S0 U
- }- S# `5 w2 B- q' V' L
- Serial.println("[HTTP] GET...");4 h% T) j; E) D2 y) _
- int httpCode = http.GET();" _3 [8 }8 p1 u, c7 C6 d
- if (httpCode > 0) {- _0 v: t! @' J; Q1 r$ i
- Serial.printf("[HTTP] code: %d\n", httpCode);! N- X; B4 H; v/ [
- if (httpCode == HTTP_CODE_OK) {
- b" ~9 f% [+ y! } P# A7 u0 {& q - String payload = http.getString();4 y$ G/ H7 e* d9 B
- Serial.println(payload);
9 T4 |- `# R5 D6 v% t/ l- u - Serial.print("\r\n");
2 r9 f# R# J! e0 c - return payload;9 D* ~3 O$ E0 ?' Z8 r; J3 m
- }( X' r% r J- \7 W
- } else {
9 \' V4 K, Q/ S - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 D$ ?, g) e ~% N - http.errorToString(httpCode).c_str());: u4 @- s+ s% g( e/ S
- }
" g( [) U1 Z; ~; \4 c5 u3 u - http.end();
6 x1 f8 k9 E! e+ q6 {# r( I9 Z$ n - return "";) `2 B- F( o- N4 U( y3 ~% h
- }3 A8 Z& X: j7 [' F( J% f. \
- }
! o, p) f- R0 t/ e( D( e, \0 l1 j - void mainAction() {' u+ u( t2 s' r
- // 发送请求3 T) ^. N: q- h: H6 A/ C
- doGet("http://google.cn");
+ V, [8 D/ S; N8 F# {. ` - }
' B+ |1 u: t) r4 g
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