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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 v3 }2 G6 H; w% p) c
- #include <ESP8266HTTPClient.h>+ |( B9 V- Y. n0 N( T$ ~0 A
- #include <ESP8266WiFi.h>
4 @/ z) L# F0 Z0 y4 ^ - #include <ESP8266WiFiMulti.h>
% k: Q: d: }2 _7 K# k* ^$ [4 a2 v - #include <ESP8266WebServer.h>
$ z' `/ H! `1 m6 P3 S- K - #include <arduino.h>
) R( ~) c* r) x3 p) c7 Y - ESP8266WiFiMulti WiFiMulti;7 ^( I' Y$ f$ g* O$ `
- ESP8266WebServer server(80);7 t, B3 P9 @7 ?- O6 b: q9 h ]
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: t# F' ?: X8 O3 ^$ e - ADC_MODE(ADC_VCC);1 ?' c+ Z3 z, v" l' y
- void setup() {
% D8 t9 L- a% ?5 h# ] - Serial.begin(115200);3 ^& {) F- a( R7 ?* F4 d- C- `
- Serial.print("\r\n\n");
" d7 }# E' |8 {" ` - pinMode(2,OUTPUT);3 X$ e; u6 N3 `6 t" G" v
- // WIFI# O2 A+ v. R: D2 x9 r. y
- WiFi.mode(WIFI_STA);
2 h7 ]8 T1 y) |1 W v) b - WiFi.hostname("Sparkle");
9 P( u1 Y- ]4 ^( O; I - WiFiMulti.addAP("wifi ssid", "wifi password");
6 N. y6 l0 g* p. t1 A/ w ~ - int tryNum = 15;% ~$ t( |+ Z1 d \" C( M8 L- k
- Serial.print("Connect WiFi");; f9 F1 B/ p; m" t$ {# v0 S
- while (WiFiMulti.run() != WL_CONNECTED) {' E' a M" e+ F& g' N
- digitalWrite(2,0);6 G/ [! J. a* b9 r' A3 d
- delay(200);" L, V0 A/ H% w
- digitalWrite(2,1);
: W/ P ^4 T# V) q - delay(300);
4 o# [7 v/ f# ` - Serial.print(".");
7 q( Q! O X0 U: _8 Q - tryNum--;
4 [2 E/ C; b7 i, B7 @ D - if (tryNum == 0) {
O% z2 n) d' f" ] v7 H+ J& | - // 1min
% ?, l# o( B% r; Y+ k% d) q% P - // ESP.deepSleep(60e6);. H' @( k4 Y* g1 \ s
- ESP.deepSleep(0);' p4 E; u0 G# r3 e- D) L6 n
- }
, A- h, t6 q- W1 g5 | - }+ Q, \ Y* `- v* g# L7 w4 x* |! W
- Serial.print("\r\n");
% y& @# c8 F. s8 p - digitalWrite(2,1);" ~; D7 M+ l. A6 c' s( u+ ]8 z) z
- Serial.print("IP address : ");
) z! b* b E5 } U - Serial.println(WiFi.localIP());
' X# i' e1 M& X) d8 k' F) E - server.on("/", HTTP_GET, [](){. Y2 S7 h/ ~5 |. X% |
- server.sendHeader("Connection", "close");$ d" n9 T, N4 f& _% z
- server.send(200, "text/html", serverIndex);
3 N1 t+ L: w; K - });
9 V0 Z0 C* o4 p8 ] e" N- O! z d - server.on("/update", HTTP_POST, [](){
) o( I% v8 k, }3 X2 D - server.sendHeader("Connection", "close");& E7 {/ l5 I8 ~
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");' a3 W3 @/ m% h
- ESP.restart();! w8 O( O& p, b; |
- },[](){
# n0 a7 W( B3 [8 u5 x( K9 x - HTTPUpload& upload = server.upload();; h+ l5 C5 k" j2 B- K- y% M7 m
- if(upload.status == UPLOAD_FILE_START){
9 Q5 P: g+ u& N - Serial.setDebugOutput(true);" {# e4 H0 |& d0 m/ X% ~" ?0 \
- Serial.printf("Update: %s\n", upload.filename.c_str());5 t7 E4 W5 j! G i$ G
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 H! t2 o* i- c7 G* D/ Y0 ]+ x7 i
- if(!Update.begin(maxSketchSpace)){
, a7 M" v1 b4 S. v- z - Update.printError(Serial);4 e8 r1 f8 n* }6 p
- }
" _( J2 o/ L Q8 |# \' T% Q9 g - } else if(upload.status == UPLOAD_FILE_WRITE){' f( v7 o% o q6 ~0 o
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){% Z' O* U" u; E! H: `7 _+ n
- Update.printError(Serial);& h9 {4 K; k# O( g. W$ f9 a
- }/ ?$ `$ u }3 T
- } else if(upload.status == UPLOAD_FILE_END){* [3 U {/ u' o, v' e
- if(Update.end(true)){0 ]: e1 J8 |+ I- }1 w
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);# z! G z" T9 D. h
- } else {, x+ M+ c) E9 s7 | ^- O5 F+ ]0 W
- Update.printError(Serial);
" D, [4 W0 }% p1 n9 u9 { - }
- d0 t5 D. T; A( h" ~! t& Q - Serial.setDebugOutput(false);$ C' Q2 w* @3 s# e) F
- }
3 D- b G# b3 X- _2 ^ - yield();- b6 O }; ~* C* l; m4 z6 D
- });# M0 D! q3 W9 S+ }, T
-
' G6 q$ U5 F; g - digitalWrite(2,0);' T! g# Q2 v5 I. Y U
- mainAction();- h9 k2 m2 w- R7 [: q" f
- if (digitalRead(0)){! C& H! L# k, H2 ]7 d
- ESP.deepSleep(0);
7 P$ d+ X- [( t5 m" R6 i4 N. t; Z - } else {9 J' m5 O8 L( X4 _# @# L, `2 K& f
- server.begin();" d" {' G' w, B* v0 E
- }, e+ h E4 I1 P3 l' b
- }
! I' L8 ~* j; k# e5 K. m# r$ j6 e - void loop() {
% Y8 n8 D+ y9 K7 o - server.handleClient();
8 L8 b8 l1 V8 s! v - delay(1);
2 _# h$ m2 n4 c/ _5 }( k - }1 U# V8 z$ c# [$ P
- String doGet(String url){
: _4 x$ ^3 D7 c2 @- Y6 o - if ((WiFiMulti.run() == WL_CONNECTED)) {
0 b9 i8 s0 {0 z0 j8 x - HTTPClient http;) d, V _4 J0 z
- Serial.println("[HTTP] begin...");* B4 P3 k7 {% K' c9 o) d- z A
- if (url.startsWith("https")) {
8 v9 n1 j; V7 i* _, p: y - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
& V4 g- B( {' G4 z$ x s - } else {
& }" P8 X j* u6 v' A, @1 C* L8 ]/ d5 ^ - http.begin(url);5 L& h& O3 y0 }- j* R4 W3 B
- }
0 {" l4 }: H& H I* B2 q - Serial.println("[HTTP] GET...");
8 Q9 ~# f; W6 g I - int httpCode = http.GET();3 e& w$ b* a$ h" e
- if (httpCode > 0) {8 E4 A, k7 w- J/ U s
- Serial.printf("[HTTP] code: %d\n", httpCode);
`; I4 T$ F# ?6 A' E - if (httpCode == HTTP_CODE_OK) {& h& b) T% H6 L$ X
- String payload = http.getString();
% {% x# J7 A. u6 M6 V - Serial.println(payload);- A$ l. N3 v, P8 b0 m2 Y
- Serial.print("\r\n");
6 w+ A: P1 {# A5 f6 T7 b - return payload;
/ X X2 i1 u( C1 ]1 e3 d - }& I. y. B. C8 t- O0 V0 } b2 B6 x
- } else {0 |3 S9 u6 w0 _
- Serial.printf("[HTTP] GET... failed, error: %s\n",! k1 ~, p7 [9 p/ R/ F) W- j
- http.errorToString(httpCode).c_str());
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- http.end();
) a) }* s0 `8 ]5 V - return "";: x( p- Z" e7 | f
- }
$ D* x1 {3 O; @0 ~; i) y- | - }
3 n y2 n& d, K* j/ }* B* H - void mainAction() {
9 Q% A4 I: m! H$ S" \; t - // 发送请求 H5 ~( {0 b; I
- doGet("http://google.cn");5 P6 A; c8 }' O" Q$ `
- }
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