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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)
2 ~" l) Y3 ]! v3 |; D- #include <ESP8266HTTPClient.h>
( D* f7 Y: c5 D2 C' D. y, k - #include <ESP8266WiFi.h>
# G: y7 m7 l8 l - #include <ESP8266WiFiMulti.h>. B: x9 |5 c/ `! t3 S; e" k* w; g5 t
- #include <ESP8266WebServer.h>& [. B/ ?$ y& W6 J2 K4 l) Y& K
- #include <arduino.h>0 Y/ v m0 Z7 ]# R' m" j
- ESP8266WiFiMulti WiFiMulti;
7 Z6 x! C4 Y4 K+ n' r9 b1 z5 R - ESP8266WebServer server(80);5 x+ N# o* a5 D2 C2 R: d
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";. P4 E. \, K" R) K, W' S
- ADC_MODE(ADC_VCC);
# u1 y- {* T2 \/ U$ n6 S - void setup() {5 S3 R: P1 w3 Y& G' c# n
- Serial.begin(115200);# f1 y# `. h$ Q# ~4 i# D
- Serial.print("\r\n\n");& v# m, x- ~# |2 W2 m) a
- pinMode(2,OUTPUT);
0 y1 M& F) p. S: [ }2 X F, z - // WIFI
+ d$ D) v& I: f4 @# O( M - WiFi.mode(WIFI_STA);
4 ]! I$ N; S4 w, s$ D9 D# K( M - WiFi.hostname("Sparkle");! N7 ]; j5 k2 r1 D, O
- WiFiMulti.addAP("wifi ssid", "wifi password");4 \. r4 u7 R2 R8 s7 N6 n7 j! o& b* W
- int tryNum = 15;
& X# U: A; J' J* g( T" [8 G - Serial.print("Connect WiFi");0 G' _1 l' D& y# ]
- while (WiFiMulti.run() != WL_CONNECTED) {
, e6 I9 V& s+ R5 B7 g/ }. `) a - digitalWrite(2,0);/ K: X* N! x/ v% ]% {6 E# a o
- delay(200);
: K6 [8 s7 G/ n - digitalWrite(2,1);
1 f# q$ t4 J! g4 J - delay(300);
% H. T+ p8 S+ V' [% e. m - Serial.print(".");! Z, }, @7 m! C3 e. `
- tryNum--;
' J" g/ K" U% n) k2 b - if (tryNum == 0) {
# [9 N* t( x- ~$ R - // 1min. }$ S* e/ r# d( K& P5 o
- // ESP.deepSleep(60e6);
) A+ @+ P% w" k - ESP.deepSleep(0);8 Q6 N, s7 f2 v8 H) K" ]# z
- }8 X( ?* F" t( Y7 V0 Z% Y# k3 a) m
- }: I. ?8 N. l: d5 n
- Serial.print("\r\n");$ Z J3 b! R1 X, r7 l* G
- digitalWrite(2,1);
+ F( l- q9 S& E+ ^0 k - Serial.print("IP address : ");
- [+ n3 X- V3 d( O' k% P - Serial.println(WiFi.localIP());$ \- F, E6 G( v L
- server.on("/", HTTP_GET, [](){
* P7 R/ R& ]3 g: n) N- H0 ^ - server.sendHeader("Connection", "close");
, x; i, ]8 Q; V! i* y: X( U6 o - server.send(200, "text/html", serverIndex);
, `1 i4 ~% I! E/ F* A - });4 l+ v; ]3 q7 }2 G' @
- server.on("/update", HTTP_POST, [](){
1 M3 h4 c' M% s% n1 |% f5 P - server.sendHeader("Connection", "close");9 f4 n+ w, J0 O9 _
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
. u6 y% Q2 ^& j$ L/ z; z - ESP.restart();
" f6 D9 X! g, g; U9 r - },[](){
c8 A y+ S+ v8 J. c7 A b* L4 N - HTTPUpload& upload = server.upload();
8 N* ~- {/ D+ Z) r0 [ - if(upload.status == UPLOAD_FILE_START){
$ ]' A( {2 X3 p0 c5 m' } - Serial.setDebugOutput(true);3 Y# c, S! ~. N! ^; `
- Serial.printf("Update: %s\n", upload.filename.c_str());( ? R. k4 F: m J8 c5 K
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% F2 [7 r, O; b3 F2 q$ O8 {6 I5 j
- if(!Update.begin(maxSketchSpace)){/ v, e5 D% S+ \0 z2 b3 L+ q. M6 t
- Update.printError(Serial);
8 W; Y, o0 F( N - }* f7 I h, B! _+ _
- } else if(upload.status == UPLOAD_FILE_WRITE){8 W2 @. V0 F# S5 f& q& N' k
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
2 @6 U* r% _0 h7 z$ `7 c - Update.printError(Serial);
, Z5 S% L4 }7 b - }
6 [" y6 p$ W8 \6 b# U - } else if(upload.status == UPLOAD_FILE_END){+ Y* C0 w3 O7 R4 V" s
- if(Update.end(true)){( y' I& k3 E& N2 q5 p" @
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
) q# ^, p, m9 X8 U) D - } else {
- h, Y0 ?6 [) f# E, }* I3 g7 M - Update.printError(Serial);
" C7 n6 Y7 B0 i2 C5 r! s - }% ?+ o, E: \5 p
- Serial.setDebugOutput(false);
+ O7 h! }6 ^5 K) c - }
1 c! o8 N5 k. A - yield();
7 b& e N' }, d$ b8 E$ z3 Q* ?, ?/ ^ - });5 _0 F$ N6 x# ?4 ^5 E8 ?) E% a
-
) k/ h- i, `8 F9 z - digitalWrite(2,0);
3 a; S7 _- I/ y) G - mainAction();9 r8 @3 [7 {$ z5 k9 \# L
- if (digitalRead(0)){& [( S! |1 J# F; s5 W/ x; e
- ESP.deepSleep(0);
* z Z8 Z( m. N5 v - } else {
7 r9 k% Q# n( Y% s/ s8 R - server.begin();; B! @8 t, D3 ^8 p
- }
, T; I7 ~$ `4 j/ ? - }
0 n9 t H0 D# s' M& k - void loop() {
0 W1 S8 O! x! Y) z0 W7 j - server.handleClient();0 X' S- o. R! n9 f9 j9 i+ s
- delay(1);2 _6 W6 r0 W( Q2 Y
- }/ x- B% r' ]1 L( E
- String doGet(String url){
5 e9 V5 ?6 \/ ]# ]$ h3 O - if ((WiFiMulti.run() == WL_CONNECTED)) {
7 A5 C. t* h# O3 r; e6 f8 ] - HTTPClient http;
: `0 N$ ~" a3 \" E' F - Serial.println("[HTTP] begin...");& D$ h8 T# g+ V% Y5 d! @
- if (url.startsWith("https")) {9 F! v1 c- E; h3 O+ @
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
, y" b/ ]3 b3 |; |: k& { - } else {
9 `7 a* @5 Z) H+ _! @$ E$ h - http.begin(url);
" R% |6 w4 K& {/ P" x - }' D) _1 K8 {( ]# \7 E5 @% F; B* f: K- p& l
- Serial.println("[HTTP] GET...");+ V$ K( Y( w' r8 ~
- int httpCode = http.GET();
# v! j- i/ ? H0 T - if (httpCode > 0) {7 f3 F+ \9 b8 ], J! l0 ~
- Serial.printf("[HTTP] code: %d\n", httpCode);% ]" ~+ o& i4 {6 ]! [& q, M9 `
- if (httpCode == HTTP_CODE_OK) {
# Y3 }0 T' P {/ V& z - String payload = http.getString();. y, M2 J' `0 Z# t/ B% G( G( x
- Serial.println(payload);
6 r9 o; @8 @' j& d5 P - Serial.print("\r\n");
# l; r. I0 d: I& s5 [1 y& `, j - return payload;! g, ~3 L/ V0 V3 t3 P+ h9 P
- }
! Z1 E' b! n8 l% Q5 f v - } else {
/ _- |& T9 g( z" N+ V - Serial.printf("[HTTP] GET... failed, error: %s\n",
0 M! t, U7 X/ z% [ - http.errorToString(httpCode).c_str());1 z- f4 B* u8 k# f3 S
- }, c( x1 `- u6 O: [8 | J
- http.end();
6 K9 L6 L9 N3 R$ L$ k# ` - return "";
$ W% H9 A% e' n+ v& Y2 s - } G' S3 Y% V$ o. S- C( h, Z
- }
% {. j$ l2 e$ h$ ?. U0 s& { - void mainAction() {
0 |6 R; B8 o5 k7 l6 d - // 发送请求' ^7 O$ u- d# f- A
- doGet("http://google.cn");3 N% ~5 A3 t+ T% b y
- }5 H2 g) S% _! p
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