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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 |5 h8 n2 ^2 |) y- #include <ESP8266HTTPClient.h>
' C M+ Z d( U O# G* q - #include <ESP8266WiFi.h>0 m+ \9 [8 Y7 Y5 m6 b* t
- #include <ESP8266WiFiMulti.h>' C7 e; c" |! y2 k+ Y# f
- #include <ESP8266WebServer.h>1 E: e3 ~4 g9 e$ s
- #include <arduino.h>
' p5 Y' _/ @8 D; o2 `3 G; } - ESP8266WiFiMulti WiFiMulti;
. r. y) i; S* s+ ]5 g6 S - ESP8266WebServer server(80);
# l9 D. I4 X, {( ^8 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 @, g0 K6 z8 u( D/ c1 a - ADC_MODE(ADC_VCC);
, y, p% h* i6 x5 I8 d- c( } - void setup() {/ x/ w$ k* P5 p4 |; N- M
- Serial.begin(115200);1 n7 |3 Z! G2 I2 J/ e( J7 W) E
- Serial.print("\r\n\n"); I5 C% }) T4 r2 s; F2 S4 X
- pinMode(2,OUTPUT);. T# E& m3 c9 w$ x
- // WIFI0 N; o8 L! H4 o0 N6 Q
- WiFi.mode(WIFI_STA);
4 V8 f+ b4 `: v, H7 N - WiFi.hostname("Sparkle");! r! X; H5 f/ O
- WiFiMulti.addAP("wifi ssid", "wifi password");
1 r2 x: g2 d8 `$ ], P$ j - int tryNum = 15;1 |+ p" Z# g* d4 A8 P0 W! t" b1 b
- Serial.print("Connect WiFi");, x6 B) h- B+ z! n. S& S5 V. }
- while (WiFiMulti.run() != WL_CONNECTED) {
% v8 P! j$ P9 z G& j1 J& t. r - digitalWrite(2,0);
" F! d" j0 Q2 @/ x# l& r) F+ F - delay(200);5 q. p( E+ Y, n$ T- K$ m
- digitalWrite(2,1);$ ?$ c( e2 i" L! r+ p [
- delay(300);0 H# `2 b9 l* S0 W
- Serial.print(".");
7 j8 v. @. ?3 Z/ O - tryNum--;
. x, o$ k& i$ T& G - if (tryNum == 0) {
3 J, `0 ^. T( A1 ?0 ~! D. { - // 1min; H' {* a/ \* d+ `4 R) _
- // ESP.deepSleep(60e6);
5 ]) U1 r* D+ H7 m: H - ESP.deepSleep(0);3 h7 A [3 Q H. r
- }6 U" f7 c' u* v* |/ W/ \8 N
- }, s# D& z- F; ~( ~+ n
- Serial.print("\r\n");9 M6 w" F6 ^) a& }! I
- digitalWrite(2,1);6 k) H4 [5 C2 E6 `; n6 ]1 n
- Serial.print("IP address : ");& W; f* S* S+ ~( A
- Serial.println(WiFi.localIP());
) C+ T* z3 H3 \ - server.on("/", HTTP_GET, [](){& p2 P' G: x# f- W$ K; R2 |5 t% I, S
- server.sendHeader("Connection", "close");& w! I1 f$ |1 L# T+ c/ U- l
- server.send(200, "text/html", serverIndex);
4 B. q6 F* c/ J( A9 E% I - });
1 V+ Q( D/ w* V' D; X' a - server.on("/update", HTTP_POST, [](){9 D L* ?$ B, \6 a3 n% T
- server.sendHeader("Connection", "close");7 K, R( {% W: Y
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
7 D2 L4 S& ?) }" P - ESP.restart();6 q6 A; q" z, v8 Z5 A
- },[](){+ Z$ u8 U, F& q T1 @6 {
- HTTPUpload& upload = server.upload();
8 B7 @( p' t1 T3 y - if(upload.status == UPLOAD_FILE_START){$ T9 g7 {7 ], x6 i
- Serial.setDebugOutput(true);
" C7 u+ V# a/ R1 K& N - Serial.printf("Update: %s\n", upload.filename.c_str());
# j; x$ a( L$ i - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- \, l: f: j, s, s. T. C
- if(!Update.begin(maxSketchSpace)){
' a* d( }2 a1 H/ O; ^ - Update.printError(Serial);6 i9 q) M) Z; e( d: f% b, @/ ]
- }" w! m/ K& y& D9 C% l2 o, u7 V8 | R
- } else if(upload.status == UPLOAD_FILE_WRITE){
' h( z* ?5 F& |2 d$ H - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){5 A/ {5 \6 e: R5 C8 z6 n5 _" a! V
- Update.printError(Serial);7 F, R, J& k, y0 D3 O- s4 U
- }9 e3 }1 j8 N+ ?/ W
- } else if(upload.status == UPLOAD_FILE_END){
) [+ X) h+ n$ x5 H3 j$ w) e - if(Update.end(true)){% e; M% B' x& E- I; |' m
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, O9 o3 m! M5 {2 |8 L4 U) d - } else {' P) B( A, k* n5 z. s
- Update.printError(Serial);. K2 H5 C7 J3 w. n+ c7 T6 s
- }0 b1 `& q: Y8 R
- Serial.setDebugOutput(false);2 w2 I' }7 J( ]* v K: i% ?
- }9 U, ?8 k h1 [) w+ ?+ V
- yield();7 Z2 S# H4 E% D6 V, h5 F5 c
- });& l% _6 P5 X3 a- w+ _
- ' y/ r- J5 }1 x# g- }+ v8 V% @
- digitalWrite(2,0);6 ?% J9 g5 }- d) \1 f6 z
- mainAction();
& x, A, L& ?3 m7 M! P) E! p( S5 b3 v - if (digitalRead(0)){
{! D+ y4 X3 e. j - ESP.deepSleep(0);
! W b2 B* q& Y6 S% `2 \, H1 o - } else {
4 u1 x6 R7 s; i$ R& m4 ~ - server.begin();
7 Z p- k! I/ y, N - }- L% ?+ I. K9 d Q) X; p
- }
' h. M1 v8 Z9 @ p4 W - void loop() {
; l3 F! B& N5 e% G: u - server.handleClient();+ M' l/ e+ ]! ]( X+ ~
- delay(1);4 t' V& a& s5 `* b
- }
$ S+ J" K% T0 X& q - String doGet(String url){$ u0 e5 n9 \( W- B, [
- if ((WiFiMulti.run() == WL_CONNECTED)) {# w4 g4 S4 V0 `* R& I* V7 V1 t
- HTTPClient http;7 t- O- a: Y# P1 |/ J
- Serial.println("[HTTP] begin...");! g- _0 V9 L8 P8 p2 ^
- if (url.startsWith("https")) {3 F6 c8 F6 u$ j% G* G5 [
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) M& F/ }& q4 P - } else {
) i' G0 \# |& v u6 @) T - http.begin(url);
% _# w# i# p y. e) m - }* k/ V+ D- n+ t8 a9 M
- Serial.println("[HTTP] GET...");
1 N D7 K& Z9 J W! h( m3 d - int httpCode = http.GET();' D0 K* X6 z( E
- if (httpCode > 0) {
! Q' I. L& O# u" W0 o/ u! H - Serial.printf("[HTTP] code: %d\n", httpCode);
2 C; ~) n. W& x4 L7 h - if (httpCode == HTTP_CODE_OK) {% q9 m5 ?: v/ k6 t+ c/ \7 w, E; E
- String payload = http.getString();$ s9 X, B. w% B, ` u
- Serial.println(payload);* h4 Y5 A* B) n: M, V
- Serial.print("\r\n");4 M v* m( p- |: z/ N: b" O6 x
- return payload;
& `6 E+ [: V( @* m% ?# Y6 G- M - }
/ L8 | v. T- D - } else {
3 {. j6 K9 b3 V) } - Serial.printf("[HTTP] GET... failed, error: %s\n",
2 C+ @$ ~; \2 \% B9 G - http.errorToString(httpCode).c_str());7 z, X% D7 g+ P) w$ A
- }
9 q6 u* D/ w W2 s8 l& n5 W - http.end();* S6 P; `/ H0 [5 p; ]7 n. [2 b$ |
- return "";5 v8 x& I' ?8 \
- }! F# S, }! _# j+ ]! ^
- }" x5 ?. l4 k$ ]( e* J+ L ^
- void mainAction() {! g+ ~9 }% `% x5 A9 H9 K% Q3 F
- // 发送请求
$ B" N/ P3 J" ]7 c5 X# e - doGet("http://google.cn");
' g- Q ?, r5 [3 r5 j* d - }% g- I! I# t* n x, B, E: m0 y
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