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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)% `% I9 z& S* y* i/ c- u& a
- #include <ESP8266HTTPClient.h>6 Z$ S4 x) x! |2 s4 r# o
- #include <ESP8266WiFi.h>
2 n- z7 `' x6 I; R3 m/ k. e. I ]0 E - #include <ESP8266WiFiMulti.h>
E5 V8 G9 v, y - #include <ESP8266WebServer.h>
7 T0 |, j2 b/ v/ |; _6 W m3 w - #include <arduino.h>1 D: T0 z- ]$ A- b/ U( ^+ M
- ESP8266WiFiMulti WiFiMulti;
" ~2 K6 g4 N R- d6 F7 x1 p - ESP8266WebServer server(80);0 e& y# Z4 m4 r% z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
k: Q7 J0 b: F; A2 h5 ~ t2 V5 K4 i - ADC_MODE(ADC_VCC);
' ?/ w8 n3 D3 R) l! ]0 ~ - void setup() {
1 m; t( d6 G2 y7 P- X) A/ d5 | - Serial.begin(115200);
9 k# w; `, ?; g, E" T$ r - Serial.print("\r\n\n");+ L2 s; y7 l" S! ]" v" H
- pinMode(2,OUTPUT);
. W Y2 I& v, Z. \! W* ^- y+ }2 @ - // WIFI
& w" F; N2 I( C; L1 [. l - WiFi.mode(WIFI_STA);
) ]( W* C5 a' X9 B/ y$ k( i/ y - WiFi.hostname("Sparkle");
0 `& m' @! s, A3 l- r+ h - WiFiMulti.addAP("wifi ssid", "wifi password");
. u; M8 Y6 Q3 F Z% z9 _ - int tryNum = 15;
, } f/ q6 `! W' Q& ^ - Serial.print("Connect WiFi");
+ ~& r7 y- E: T) b7 g# M+ {) B - while (WiFiMulti.run() != WL_CONNECTED) {6 Z0 w# D/ m1 k, b
- digitalWrite(2,0);) `* g8 | v- b& B
- delay(200);. g& X5 [5 B$ p9 @$ p6 a8 a. n+ Y
- digitalWrite(2,1);
5 r: r; v! m. q4 Q% g1 r" M( H - delay(300);! j' ^: ~0 Y1 ]9 B4 O; _2 _" _4 n
- Serial.print(".");1 Q, p1 G4 N) ^/ a% E+ W1 A! D
- tryNum--;. r" X6 v5 E9 p, s
- if (tryNum == 0) {
6 U9 t& v& r1 t0 P - // 1min; h1 Y7 y' Y" t2 t+ Q/ J! l
- // ESP.deepSleep(60e6);
) a8 O M7 P, E5 l! H3 E) c - ESP.deepSleep(0);
, l4 a) P- p$ _& M. }1 ? - }
; V/ r& b# z9 d - }/ K. H7 @1 b8 a6 h9 t4 I* A3 ?9 L
- Serial.print("\r\n");7 j p$ z+ T7 W( B; t1 x; I
- digitalWrite(2,1);: P e1 \1 e' m3 z. a
- Serial.print("IP address : ");- A# `( N1 m6 C
- Serial.println(WiFi.localIP());! L* b4 ~/ ~( w' h
- server.on("/", HTTP_GET, [](){& |/ V; s3 m$ u3 F2 w
- server.sendHeader("Connection", "close");# ^, H+ h; `" r! S9 _2 v
- server.send(200, "text/html", serverIndex);/ m2 j" ?! L) S5 R! B
- });9 h+ ~ M$ \# o. W0 B
- server.on("/update", HTTP_POST, [](){
7 A3 [+ I/ w6 w* Z4 H& ?6 M# U - server.sendHeader("Connection", "close");
( B+ V, j, J# V* }# e( | - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");7 O, c$ x. t3 Q# m
- ESP.restart();
+ B$ ?2 N2 Y' F- @ - },[](){
$ i2 [- P: R J/ c" n; R - HTTPUpload& upload = server.upload();1 s7 V6 R6 L* ]* f
- if(upload.status == UPLOAD_FILE_START){1 T: M8 ~( V/ `: A
- Serial.setDebugOutput(true);
) L" O! n: K* j - Serial.printf("Update: %s\n", upload.filename.c_str());
7 G4 D8 d3 Z+ M! r - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
0 `9 b, u- _( ~# D - if(!Update.begin(maxSketchSpace)){. w- D1 M( H: m0 S0 e" Y+ v
- Update.printError(Serial);
+ S$ _5 l3 ^- H! f c5 D - }
& I7 _8 U; z, F) r - } else if(upload.status == UPLOAD_FILE_WRITE){
) [5 i- u: N4 R - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( Z7 U2 H, X5 } - Update.printError(Serial);
6 {7 J( i0 |, P& f' i. M' N: C4 i - }2 V# C6 v6 d0 A- R7 R; @& N8 Z
- } else if(upload.status == UPLOAD_FILE_END){- a* U- l& v, s3 I3 w j5 |+ p
- if(Update.end(true)){0 g% H9 Q& Q Y5 m+ d
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
7 x( Z6 ~2 f* f - } else {
! k7 J) d; e8 e. \" D - Update.printError(Serial);
0 Y: \8 h$ r) ^+ J" W - }5 ]3 u/ K; c. K$ J ]) [
- Serial.setDebugOutput(false);
# V* \2 X5 u: P - }
' F4 f2 Z1 b% C& |" h, |" j - yield();# ]3 z, S8 A, g
- });# P- m% O3 L0 o5 P7 J! H6 v
- 3 L0 @* I9 Y5 m
- digitalWrite(2,0);
, _( Y; @0 i8 B1 ^; l7 k0 M3 m - mainAction();1 ]( L9 M8 s x4 C2 j0 H
- if (digitalRead(0)){
8 {6 O5 W' s p# Q3 b) n, m - ESP.deepSleep(0);
) z+ \, t# ~* r; l9 v ?( D% |: Q8 q - } else {
, B% Y, f5 A2 \% k: N - server.begin();
3 { N. }/ e. ]6 |7 T$ l - }
2 P3 {. R6 h- \! d - }
7 r) n' y' y5 v - void loop() {
# x5 D7 N$ D9 n: i( ?& n4 ~$ y# A - server.handleClient();
& a; L8 W: @7 }- Z0 S - delay(1);
9 E* x6 t$ W j s: H% E - }
) ~8 u8 u& x$ O% y. @- [+ i, ~ - String doGet(String url){
; X+ _9 a; C9 x, d* a; h - if ((WiFiMulti.run() == WL_CONNECTED)) {
7 r+ ~6 J/ S+ G8 ?$ {9 a4 r# i - HTTPClient http;
9 b# @" b% H5 e8 u; Y% B" O - Serial.println("[HTTP] begin...");
! j4 X, ?! P8 |8 ~3 ?) ]" j5 d6 `1 f - if (url.startsWith("https")) {
4 _! j0 z6 a7 ` - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");: o3 O- {, X& {! P0 w/ l! a, Z
- } else {) S, j6 d8 ^$ S( G/ L- x
- http.begin(url);
$ |% C+ _; C! ?9 S4 L+ f - }
$ L5 a( {2 k7 `' [ - Serial.println("[HTTP] GET...");
. ?1 c+ M9 M3 ^7 u& e1 z - int httpCode = http.GET();
9 O" c7 I5 B) T6 H5 Q/ g+ r ]( i - if (httpCode > 0) {0 v' J: R0 K6 w. \0 e. ?$ m4 _! [
- Serial.printf("[HTTP] code: %d\n", httpCode);
9 b, j& z( z, v# J - if (httpCode == HTTP_CODE_OK) {" v" v! i+ K' F, y2 P
- String payload = http.getString();
; o( P. V* E! ]7 H' a - Serial.println(payload);4 _/ A# t. R* L0 V6 W
- Serial.print("\r\n");
' I5 N! F7 k' s0 ~& ] - return payload;
+ s, Q) x+ H* {# d8 k8 V" k- r- F - }
" h3 A. R, V+ k, F5 U2 x& j7 ? - } else {: n" g+ L; k8 a
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! j* M1 v/ d% q7 J4 @/ g - http.errorToString(httpCode).c_str());% m5 v: _0 H) V& I6 B* X) R) T
- }
% W. [0 Q. }& v5 q3 Q9 J) \: Y - http.end();, H2 m! ? o) j$ m* n/ R8 D
- return "";
# N+ Z& F3 K+ t; o$ J5 {- e - }
4 H0 O( \; @7 \$ l5 x6 S - }* L( h* _3 c4 x5 q/ [/ s0 p
- void mainAction() {
! i. x1 \% `) V6 |& `: v' @3 ` - // 发送请求6 L/ V8 k9 P/ W$ u: Z# z; `
- doGet("http://google.cn"); |* V! K L# s0 \
- }
$ ]1 x! i5 P( y9 S$ u
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