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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). \) `* d+ _+ s: h6 X1 _4 g
- #include <ESP8266HTTPClient.h>
8 J- `) M! ]6 [6 ]- b - #include <ESP8266WiFi.h>
6 \) j0 r y8 V, i/ V1 ~. L - #include <ESP8266WiFiMulti.h>) U2 }& P/ H5 d" I. ~- h
- #include <ESP8266WebServer.h>
, Q' I, ~# y) w0 v' Y - #include <arduino.h>
9 H+ @6 d; \5 s3 k - ESP8266WiFiMulti WiFiMulti;
: Y3 a" F8 F E x# { - ESP8266WebServer server(80);
) z' h8 z, O% K& X - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";* Q9 i6 E! C3 G* t, {
- ADC_MODE(ADC_VCC);
' ]' z) B- N/ H- y$ t4 Y - void setup() {
" p# E; F7 t1 [: E- ~4 t - Serial.begin(115200);
! i7 R7 }" W7 b6 V x6 a5 f1 P( N - Serial.print("\r\n\n");: ^" q- N5 \7 g: Q0 @
- pinMode(2,OUTPUT);
8 `6 x4 L5 g% P( k/ X9 { - // WIFI
3 Q6 Q7 @2 l" K2 f( z F - WiFi.mode(WIFI_STA);1 H( h6 Q; [1 W1 C3 Y1 X% o
- WiFi.hostname("Sparkle");
4 e7 a! q. _/ g7 z' ^2 T3 `) T - WiFiMulti.addAP("wifi ssid", "wifi password");
& j {* \; e! h2 V - int tryNum = 15;
/ j/ {# ~, W% ? @ - Serial.print("Connect WiFi");
2 r/ O! {* m& d+ m6 N - while (WiFiMulti.run() != WL_CONNECTED) {4 R+ @/ Y- E( T6 t; a9 F
- digitalWrite(2,0);
5 w' `9 F6 }1 X: x - delay(200);5 Y) z8 ^- a) U0 O% h
- digitalWrite(2,1);
7 k9 }) K* M" J4 c; x' v - delay(300);
+ z5 H; p) u( y" T5 C* t - Serial.print(".");2 U0 p& A5 \7 P t
- tryNum--;5 Z9 k9 G9 q+ c3 E6 f7 \
- if (tryNum == 0) {5 i, p) D9 A: X! T# v: U
- // 1min
1 N$ _2 |/ J8 R* _3 Z* j - // ESP.deepSleep(60e6);
/ t8 I. p5 G* w- {' e4 z$ U' b - ESP.deepSleep(0);
. C7 I/ q$ {& y - }
: c5 l: O& _7 X# B - }0 _1 `( R+ @3 m6 c3 l
- Serial.print("\r\n");
% W9 E8 e; G L2 g" O! U - digitalWrite(2,1);4 z6 h# M6 m# { a
- Serial.print("IP address : ");+ [0 ?! L# x: n( Z
- Serial.println(WiFi.localIP());5 Q$ P1 i6 p- a6 \/ V( \) m1 o
- server.on("/", HTTP_GET, [](){
, L9 z( o1 f7 L/ C: [# j7 d - server.sendHeader("Connection", "close");+ Y" l* S. }8 N& i4 M9 Q
- server.send(200, "text/html", serverIndex);0 l3 ^3 n# T7 H' m. R8 p$ L" A
- });# Z+ r" b$ e X0 c7 T2 ~4 `
- server.on("/update", HTTP_POST, [](){
?' y4 u6 a& e2 \8 w, z9 t( l8 K+ P - server.sendHeader("Connection", "close");
/ X, J1 \' e1 z" G1 X - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! P1 C% [" O' t5 u3 r- S. {
- ESP.restart();: N8 m: }! ~# L3 L) I
- },[](){: m8 d% Z& s; H0 }
- HTTPUpload& upload = server.upload();; q* l8 D+ B1 f7 ^5 G, J
- if(upload.status == UPLOAD_FILE_START){
$ h( }/ s8 u" Y! z3 ]' q - Serial.setDebugOutput(true);$ G9 c9 K. y: @4 V" u6 ~
- Serial.printf("Update: %s\n", upload.filename.c_str());) L$ n& L# |0 i3 G: S8 z& m/ X
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000; u3 q- y# k7 H+ s- @' x* _
- if(!Update.begin(maxSketchSpace)){2 h! e; o+ y. ]! c5 C% n u
- Update.printError(Serial); }7 n9 p0 R- S" C
- }
* h, e$ k. D$ G" ^2 u - } else if(upload.status == UPLOAD_FILE_WRITE){
+ I4 O3 e# ]3 j& B" O9 S - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
0 p4 R8 G$ T# t" f* i3 T( a - Update.printError(Serial);. p1 Z+ ]5 Q+ f2 X$ a4 W' _
- }/ E2 R6 d3 J- d5 X
- } else if(upload.status == UPLOAD_FILE_END){$ F: _8 U; c! ^3 O7 r) U2 n& i
- if(Update.end(true)){
# g0 M n+ a: G" Y: e - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
8 [- i& R2 ?1 _* m/ E - } else {
1 \+ r; b/ C( |$ J - Update.printError(Serial);# J$ b" Z" Y9 V* L/ `
- }( M% G' l: {/ c) j' G
- Serial.setDebugOutput(false);
5 e8 q( u( w5 t3 h% t - }+ S2 A& Q! N+ R1 K4 q8 C
- yield();0 t c4 R! F+ _, K+ V$ _
- });
6 l9 ~$ G6 O, j/ t/ A - 1 L4 A8 w6 m5 ]; W$ ]- S0 s
- digitalWrite(2,0);
( {- U g" t! d! j+ ?( R - mainAction();
" u6 H# K, N E. }3 T - if (digitalRead(0)){; f' N# A! Q" R6 ?8 U# k
- ESP.deepSleep(0);
6 v/ F3 R3 g/ Z; b7 @( W) s7 I8 G& c - } else {
$ N) j3 Y. {( w% O/ Y; x - server.begin();" r7 ]' M/ F1 g! D
- }: P# n1 Z a& n1 P% n9 u
- }
R2 [5 O1 j% A4 C1 c0 ?5 ?" n - void loop() {3 F# |+ m! u7 ] p. m. i7 p, X4 G
- server.handleClient();6 T$ n% }6 L) a
- delay(1);
0 u* r- x" C! q( |! |1 A+ C - }2 a5 R) T/ D% Z2 T8 |1 s+ R
- String doGet(String url){" a6 E) _) f; P! n# ]& P& d
- if ((WiFiMulti.run() == WL_CONNECTED)) {
( G& w# F# F1 y& T" i - HTTPClient http;1 D+ Y& |. ]& d1 C0 o
- Serial.println("[HTTP] begin...");
/ d D/ M: U3 H5 V( l+ C- R1 e5 F' Z6 o - if (url.startsWith("https")) {
' H: J7 h ]1 M+ t7 Y# J* E# W - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");, k/ A- O/ J9 Q
- } else {
7 T+ C2 w6 Q0 _3 z - http.begin(url);
" @2 _3 f( a/ {6 @7 }; P# a, ]% E - }4 k- f/ ?& n# p0 R' K3 c i! o1 _
- Serial.println("[HTTP] GET...");; H+ r# l$ `% _. h
- int httpCode = http.GET();
) F, ~. p5 r3 e3 b, L [7 Z - if (httpCode > 0) {
* e3 {' h% W, M/ V8 C7 o - Serial.printf("[HTTP] code: %d\n", httpCode);6 s2 d1 S5 h2 g9 l. j! v- R+ ?+ P
- if (httpCode == HTTP_CODE_OK) {1 ]' n6 e9 }( K; c, p3 \
- String payload = http.getString();
, b3 E( N( k: ^1 A" g - Serial.println(payload);
- q2 L. A1 Y/ R9 [" @. D - Serial.print("\r\n");& }8 F- |' c/ l5 w, _: R! ?
- return payload;
* h' l4 V8 D& {+ d1 C+ i$ H - }
6 U8 n2 g& y, r2 X" Y - } else {3 i, x' B0 @! P: d( \# D0 ~
- Serial.printf("[HTTP] GET... failed, error: %s\n",: s* |) O! e5 i: \$ X$ n
- http.errorToString(httpCode).c_str());0 X6 {8 R7 Y: v
- }
1 @2 E- y' ?" y+ Z. V - http.end();
! i8 `% L; l2 m3 P - return "";. y9 P8 g+ M, `# ], I" S
- }
, S: N" K& Z5 w5 G - }8 i0 C, M ^/ s0 i
- void mainAction() {4 f, }% O! I% A, e$ v, G! `+ G
- // 发送请求
( b5 ]$ V9 h- o' c - doGet("http://google.cn");
4 B/ O$ Z# W2 U2 C' P - }: A1 k* B: {) m* }
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