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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)
8 v& h) `, \5 |7 ~$ M; q- #include <ESP8266HTTPClient.h>
0 u- o5 T" ^4 }* l! A ~7 t7 H3 C - #include <ESP8266WiFi.h>* m: N* O; T3 [
- #include <ESP8266WiFiMulti.h>
. ~) |% o* E s) E - #include <ESP8266WebServer.h>
' R5 ]4 D' @/ d - #include <arduino.h>( l- E: g) M% ]) i
- ESP8266WiFiMulti WiFiMulti;
u+ E! e( l4 `; s9 j - ESP8266WebServer server(80);" f, ?) m# D+ _
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";8 q! S1 M1 @) M; t
- ADC_MODE(ADC_VCC);
( U$ z1 V/ e4 J, K- _2 R - void setup() {
9 {) u5 F% {; i - Serial.begin(115200);9 K3 t% m* x' H) Q. f, u; O
- Serial.print("\r\n\n");
# @, y7 p. M( B: ~2 B - pinMode(2,OUTPUT);9 Q9 l0 q j/ b0 d9 J( S
- // WIFI1 F9 _- w$ |4 ~) l+ f& q
- WiFi.mode(WIFI_STA);7 z- S* T& G" m1 v/ w2 l
- WiFi.hostname("Sparkle");
' i+ w3 X; O' Q* ^- Z' X& q - WiFiMulti.addAP("wifi ssid", "wifi password");
3 G# e, a( j9 q a8 }; ]; O - int tryNum = 15;, q! g* G2 m' l7 M" l
- Serial.print("Connect WiFi");
% H1 A9 L2 Z2 N& Y H" o - while (WiFiMulti.run() != WL_CONNECTED) {& C- K* n& U! {% \/ I1 Q- V
- digitalWrite(2,0);: D6 a5 Z$ }, W0 h& O
- delay(200);
/ b. k- P4 g4 M+ w X - digitalWrite(2,1);1 V3 ~ Q9 z& i6 e. s# z j
- delay(300);
: H+ s, Q. N1 G, N9 V% X - Serial.print(".");
u8 M% H& P. E" r - tryNum--;
3 Q* u+ O5 F! m4 t8 u' ] s+ G - if (tryNum == 0) {; v! ~9 ^. m7 C6 ]: H2 [ @
- // 1min+ ?& {5 A2 |" m$ X9 N
- // ESP.deepSleep(60e6);. A, i i( b; A& `; W7 _
- ESP.deepSleep(0);% z9 \- k: y2 T/ L+ E
- }& l0 h% X* P: w& {, R( v8 [
- }
+ u% ?& T2 L1 C8 ^" A! E% s6 I - Serial.print("\r\n");* u2 }2 ?7 L3 b" n
- digitalWrite(2,1);
* ?5 [- w5 B. \" Z; y A - Serial.print("IP address : ");
4 f4 G" x3 e9 B& b* n# W - Serial.println(WiFi.localIP());
|: V( G9 F" y j - server.on("/", HTTP_GET, [](){
; `: h/ @& X2 b U6 y: ^6 H - server.sendHeader("Connection", "close");
# ?; a# O3 z" w. @9 k) ? - server.send(200, "text/html", serverIndex);
+ {$ k% k# O T; k5 ~ - });3 ?" P3 t0 S2 N+ F9 y
- server.on("/update", HTTP_POST, [](){
H) Q3 R" Z { - server.sendHeader("Connection", "close");& f& o- l) t/ e" z$ a
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");5 H' b, x4 U: I; a$ H$ T# W; D
- ESP.restart();
4 g% H0 Z' B1 W. j - },[](){+ U% m. l) D |2 o
- HTTPUpload& upload = server.upload();
: a, m5 d: V2 H t# }+ L - if(upload.status == UPLOAD_FILE_START){# A9 P- }, }1 g* l
- Serial.setDebugOutput(true);: p9 y5 K5 u2 P- {
- Serial.printf("Update: %s\n", upload.filename.c_str());, H6 P; l+ ~& _1 L2 B% V3 o
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;9 j1 d; N8 k" T, I$ j5 i- G
- if(!Update.begin(maxSketchSpace)){- S, h( d W3 [% G
- Update.printError(Serial);
0 ~* ]$ V5 S, ~1 s# u9 a4 z - }
- G3 c) w# x, }% k9 N - } else if(upload.status == UPLOAD_FILE_WRITE){/ F' I" c5 {$ T1 C8 B8 `8 y
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
' f3 c% B5 g' T" K* H% {- d - Update.printError(Serial);
# a# R9 g$ o1 |# N - }) u" j) G2 u* ], L+ Y; |! H2 b1 | @
- } else if(upload.status == UPLOAD_FILE_END){
! U9 x; N+ Y! ^' \! S - if(Update.end(true)){# g9 ?3 w( Z& H9 O9 |7 }# o) R9 w' \5 e
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, o H0 f. J5 q: D0 o4 y
- } else {
. X% k: R- W- H% y3 W! \ - Update.printError(Serial);
; Z4 I4 e' B; i6 T2 e& _ - }5 Y# I6 j. L. Y1 y
- Serial.setDebugOutput(false);
( g* b3 K4 O$ T- | - }: S8 \# h Y' G
- yield();
8 V2 r$ t: u0 u1 P% I, C - });0 |5 J! A+ Y) C8 r
- / K& r& u! f; o% b
- digitalWrite(2,0);7 c4 ?* F6 y& Y0 F/ E0 I
- mainAction();5 o- p5 ]/ |- Y1 M% q- c
- if (digitalRead(0)){
9 r; p' K: |& q# t% w0 y: V - ESP.deepSleep(0);
7 Q7 \5 D; |/ @. Q# M- c# {0 ]$ O# t - } else {9 D) y! U" B, n% Q. y
- server.begin();
7 M% k( a" t9 s - }
& X% E+ {0 u/ F- v. Q( A1 h. y+ g - }0 {+ j8 o5 \( T6 {7 q
- void loop() {
$ Y8 i0 ?5 N& N* R) z! f - server.handleClient();9 W+ x. ~2 d( z0 x
- delay(1);
" q5 c9 t h5 h - }4 a) b+ v$ {7 Z' a+ M
- String doGet(String url){. Z5 L, q( J, D
- if ((WiFiMulti.run() == WL_CONNECTED)) {6 N8 K3 K+ W. g2 `
- HTTPClient http;
# q2 @6 O: _' _& }+ I/ S - Serial.println("[HTTP] begin...");7 X* R1 L( o3 i/ x) F# j
- if (url.startsWith("https")) {, m% M: ^& v* s2 z
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");; `$ o. a" X0 L& I9 d- h' K
- } else {1 t% w( L2 Q5 h/ I1 `# e1 F# U8 n
- http.begin(url);
% i6 r `/ r" F* j4 C- a - }
$ r+ R- h3 L q: @& t$ x. I - Serial.println("[HTTP] GET...");
; }2 ~. @8 @% W2 p4 Y9 V' I$ a* r. U - int httpCode = http.GET();3 S9 R1 ~8 a: V9 b
- if (httpCode > 0) {
' \# d s, I. L: H - Serial.printf("[HTTP] code: %d\n", httpCode);' X' H- U4 g) w2 E) |9 U3 v, h5 c
- if (httpCode == HTTP_CODE_OK) {
2 ?; \! M* D3 A$ v$ B - String payload = http.getString();
: v) h, s) B9 p `6 ] - Serial.println(payload);
! m9 ~, n1 @+ r9 a( H - Serial.print("\r\n");$ s1 ^3 w% @# o) T" Z# v; H* R
- return payload;9 n& n0 I2 ?1 d1 L' E* B4 f F+ w
- }
: i* t+ Y$ q* J - } else {; n7 h6 r; H1 U6 z9 Q
- Serial.printf("[HTTP] GET... failed, error: %s\n",* i% Q6 M, g# A& B( |' r
- http.errorToString(httpCode).c_str());; |- y- c6 s/ H
- }9 o; \% m5 h# i
- http.end();3 i* e# p a$ p, D9 ~3 G! `; r B
- return "";
x/ P0 _6 L# O& P# s# K. R - }
; `' D- d+ T8 O$ }+ M; l; u. J - }% g" x" q+ [+ L3 z5 ~; O! F
- void mainAction() {
! a4 l/ A' Y% V3 `/ o* r - // 发送请求
$ u: {9 \- Z, n. Y - doGet("http://google.cn");
7 Y/ M# r* @/ W4 m( g - }+ b+ Z+ f. o8 A4 U3 ^$ l
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