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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 b- H& R4 b" P) O: H1 d% ~# r3 {- #include <ESP8266HTTPClient.h>) S( c* h, b. S
- #include <ESP8266WiFi.h>4 E' s K' s( N) V1 C3 H
- #include <ESP8266WiFiMulti.h># s4 O4 c( n: i9 ?2 {+ u( m5 T( q/ Y
- #include <ESP8266WebServer.h>) {$ H' u* J, G5 a! S: q
- #include <arduino.h>5 ~1 ?4 V$ C' J6 D: e
- ESP8266WiFiMulti WiFiMulti;7 }5 t) m! \( |& h
- ESP8266WebServer server(80);6 j' i; @+ ?) g* m, }* k# ~* V
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";; ~. h9 s* l1 u5 u$ c0 O; T2 _" `4 S0 L
- ADC_MODE(ADC_VCC);
# b, @" Y ?1 S/ G! L! C: O - void setup() {! D- c/ L0 l" _6 D, z
- Serial.begin(115200);
7 [) p8 ^: x' F$ i) C - Serial.print("\r\n\n");
- ^2 X2 ~# O d/ f: ]6 n - pinMode(2,OUTPUT);8 M2 R- p/ Y% q) \9 \
- // WIFI
8 ` F# V, V8 a9 \- y - WiFi.mode(WIFI_STA);3 u" g6 {& _! N) Z0 O: A
- WiFi.hostname("Sparkle");9 j0 v0 m- `! X% D! |: L
- WiFiMulti.addAP("wifi ssid", "wifi password");# K. K$ g% } j/ v7 e- m0 p) G! G
- int tryNum = 15;7 D1 E# j# D1 b
- Serial.print("Connect WiFi");6 I( Y$ \- F) i, z6 C, [ ^
- while (WiFiMulti.run() != WL_CONNECTED) {; b8 a4 K5 ?" D R- W& f8 S
- digitalWrite(2,0);9 k6 f" c# C9 Q9 t1 w
- delay(200);
% A. J: l Q, }2 q! t( V - digitalWrite(2,1);
5 u0 P3 p- a# x+ i$ @ - delay(300);
9 W8 s" f& x v' `: q - Serial.print(".");# O6 z" T1 z) V' V
- tryNum--;
/ ]( x4 b% b2 Y3 J1 _2 i* T- \ - if (tryNum == 0) {
3 T. V# ~3 q5 Q& F, r - // 1min
# \. n" y" S2 B6 R u - // ESP.deepSleep(60e6);# a1 ~. P7 r. z9 R/ O$ x
- ESP.deepSleep(0);
0 g) r" n! \0 n' s& V0 m1 k* T1 O% d - }
. ^( ^/ j4 z" F! Q: z4 w - }. J, Y( }8 Q/ I. |
- Serial.print("\r\n");
2 e, P% V$ g; I2 T - digitalWrite(2,1);! {9 B2 B. w2 M' k
- Serial.print("IP address : ");
4 S3 {- Q( q H+ D/ P5 o - Serial.println(WiFi.localIP());' n' L1 T' F$ e8 f
- server.on("/", HTTP_GET, [](){7 P/ D8 t2 `8 m0 l
- server.sendHeader("Connection", "close");
9 { o6 Q6 b! ?' F# `8 t - server.send(200, "text/html", serverIndex);* @/ {# l2 d9 u9 u+ K
- });
2 ^* u. y& u/ e- K1 J - server.on("/update", HTTP_POST, [](){
" }! p3 ^& g) ~0 Y - server.sendHeader("Connection", "close");. D# r5 v1 O7 Y+ E: ?* U5 E
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");% D7 I& {% X0 f/ S8 H0 S
- ESP.restart();+ A' Q1 V' q* _" U+ M
- },[](){
* Q+ l1 b3 p4 A' _- F4 D- P! b1 G - HTTPUpload& upload = server.upload();, T, k& V% ^3 u: A: o& y* b: C
- if(upload.status == UPLOAD_FILE_START){
- G k1 X+ y+ C! O8 _) r8 h; } - Serial.setDebugOutput(true);
- x5 L5 O r2 h! X8 K) |/ s - Serial.printf("Update: %s\n", upload.filename.c_str());
8 m: A% r- N9 @- q9 |- c - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
! x6 D7 }, m! R, e/ j4 W0 F - if(!Update.begin(maxSketchSpace)){
) H, y4 y) T( D5 V7 H @) h - Update.printError(Serial);
; v# g$ u( w* s2 m1 @ - }) P* E/ w; J& B8 l* S
- } else if(upload.status == UPLOAD_FILE_WRITE){" j0 J# j. C+ V
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){- t7 B z2 f) h' c+ m/ j0 [' s
- Update.printError(Serial);
' Z, Q1 S4 g) u4 b) u) M7 D - }, [( b7 y1 x% W" F3 O: s
- } else if(upload.status == UPLOAD_FILE_END){. p O+ P( e1 R% s2 x+ }- `
- if(Update.end(true)){
5 O/ X2 f! M; T8 e - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);) T, Y5 A8 R- b! h
- } else {3 q Q0 S* w# q; I
- Update.printError(Serial);" I- U' O; V% ^" q) X# w
- }
/ \; D* Y3 q9 {6 d - Serial.setDebugOutput(false);
! M/ v K# H$ {! z: a+ O+ ~/ r! ] - }
4 W! q- f8 s8 v @" R% ^% G6 a; v - yield();, E+ o, t+ M/ d4 S
- });
2 Z# n' m' x+ Z* J; M/ a -
& F4 f/ Q3 z5 ~+ ] - digitalWrite(2,0);, c* @+ H/ x5 `/ Y" e4 H" S
- mainAction();
. x$ S a: |8 X2 d/ r4 B% d - if (digitalRead(0)){
, V. k( l% }& y$ t1 I - ESP.deepSleep(0);
6 g* w1 Q0 o3 G0 n1 E4 K r - } else {6 |+ J0 I( `. B" }+ ?* S
- server.begin();7 ?3 q# I h% J! E- W r/ \
- }
" m) u9 \# B; d - }( \6 N" F# S q; b* S" Z7 a! @
- void loop() {' l/ }( u5 r( R! _! K
- server.handleClient();! M) O. F# m/ r9 F% ^
- delay(1);$ m& r4 X5 r" P1 K
- }
' ]5 T7 j# Y4 S9 { - String doGet(String url){
- i7 l! N; c( R4 T3 Q - if ((WiFiMulti.run() == WL_CONNECTED)) {" B4 [: M$ B6 r. o# k) O2 p" m& f
- HTTPClient http;
3 b% r$ E4 ~; L3 Z. T# d2 o - Serial.println("[HTTP] begin...");. {: f# k5 L3 q, [; w
- if (url.startsWith("https")) {8 @3 Y- h6 X) b
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
/ X H" N! t) o9 y3 L/ y - } else {
; J9 z: z' ~; Y I9 T- W8 U - http.begin(url);
6 V: M3 `( e0 S/ O8 o* t - }$ m- @, T8 I9 ~
- Serial.println("[HTTP] GET...");
+ i ]1 _) O8 U& A2 t8 s - int httpCode = http.GET();
( X! A$ V8 n/ O. a9 P" s - if (httpCode > 0) {
- I: ^* R4 f' j: |$ ~7 F& z: T - Serial.printf("[HTTP] code: %d\n", httpCode);
* @7 _2 Y$ P- y% \% N' i) \ - if (httpCode == HTTP_CODE_OK) {) N' c8 V7 Q. @, L# e
- String payload = http.getString();
9 f4 q3 ~0 _1 l9 l - Serial.println(payload);+ q, M* ?8 z V
- Serial.print("\r\n");) a% d p$ P8 I! [; P( H/ b+ B
- return payload;$ H, o6 I) g+ }- e2 s8 Q: ~6 |# x2 A
- }4 M+ ]4 j$ Z0 e g7 }4 B
- } else {, P. C) p# j+ R, g3 r! z. ~
- Serial.printf("[HTTP] GET... failed, error: %s\n",
; T! S4 {7 V9 ~, R% U - http.errorToString(httpCode).c_str());. L3 O+ A# c7 O. `; {1 M
- }
Q# U- U6 x8 h+ A% M( ` - http.end();
: ^* k: m8 K5 P, |/ C! n1 K - return "";; ]: ~6 c# L8 s' a4 \2 J1 a; X
- }3 d. A. g! q0 }( v5 F+ o
- }
9 F8 o( a4 [: G - void mainAction() {
; S) [6 P. ~* s; Z; j - // 发送请求: S+ E! T# I% y. h3 N( A- s0 @
- doGet("http://google.cn"); U% e' U5 d! l( x; H" v7 _( N# X& z
- }
8 n4 v6 b# Q% m& ~! I; H
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