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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)
) `. ]6 f& _) i. V* K9 o; C- #include <ESP8266HTTPClient.h>
; a; |# P; `" e7 g' ^5 H3 z t - #include <ESP8266WiFi.h>5 U7 u+ M# U1 v6 O! W; J/ p
- #include <ESP8266WiFiMulti.h>
0 d) q, s" I& a! Z5 s* d+ k$ a4 {2 Y, E - #include <ESP8266WebServer.h>
2 Y% P& H8 t2 x( k8 i5 f; M - #include <arduino.h>
7 c/ ^: G. Z& Q. p. O: _7 d - ESP8266WiFiMulti WiFiMulti;
. W8 R, A3 ^: G1 X - ESP8266WebServer server(80);3 A+ k8 n$ n- G4 { C7 c
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
' {7 _5 A- D5 D6 M( C4 S - ADC_MODE(ADC_VCC); r' B9 e. {5 q6 w2 r5 G
- void setup() {
$ I# j& i1 z! O2 W - Serial.begin(115200);# T# G" J# ~, M2 f4 ]) m
- Serial.print("\r\n\n");
1 A; D! P5 U7 }4 ^- i7 f v4 Q - pinMode(2,OUTPUT);, W) R4 s$ a# c6 R
- // WIFI
; U/ b& @3 R+ a& i- y( o - WiFi.mode(WIFI_STA);
7 R: T q& g: S& g" O) I - WiFi.hostname("Sparkle");
, p: X- D! }2 J2 j - WiFiMulti.addAP("wifi ssid", "wifi password");
" z G( T5 `$ { - int tryNum = 15;3 J z1 T j M1 s/ F/ C
- Serial.print("Connect WiFi");
( M6 M% B* b3 P2 i - while (WiFiMulti.run() != WL_CONNECTED) {
2 k H6 E" p" s7 c+ V6 `; B - digitalWrite(2,0);
* p4 y9 d( }& @, _. l8 n - delay(200);
/ C8 |4 N: B$ w1 @0 k$ m5 Q - digitalWrite(2,1);
5 W# Y9 N5 H5 {& h! j& q2 q) n% y - delay(300);( \* t4 J' g" g) O' k
- Serial.print(".");
: w4 Q+ w! m) y. C. t7 v4 ?7 L# M - tryNum--;
. v! R$ [+ M# G - if (tryNum == 0) {
" z0 K7 d- o: U$ G$ }; W - // 1min
3 ?+ l& Y) U& M! H- s - // ESP.deepSleep(60e6);
# t0 Q. a" V* d6 k/ ~2 u4 Z - ESP.deepSleep(0);
6 F+ I* W# U+ g$ Q - }0 _7 b, h2 a# [1 _
- }6 Z6 b- N5 I/ q7 u
- Serial.print("\r\n");
, J/ r1 ]6 @% B! m2 u$ p - digitalWrite(2,1);
& s# r6 V9 ^6 @ a' b; z - Serial.print("IP address : ");# u2 \; K1 J/ I0 F9 j
- Serial.println(WiFi.localIP());
! N# t% h4 {/ e. u } - server.on("/", HTTP_GET, [](){. |3 s& n# m; ?5 }" ]: q2 }( b5 V
- server.sendHeader("Connection", "close");
1 I$ z4 ~5 D! y - server.send(200, "text/html", serverIndex);9 ~) a8 [: l: O5 p$ `! h
- });
$ }! z' \- b! S" H7 F# Q - server.on("/update", HTTP_POST, [](){6 h( m5 {+ B* c8 T* P# `8 ]0 R" E
- server.sendHeader("Connection", "close");
) p1 x( z2 B. ]- l5 K: q - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- _% T. {$ S$ |2 h: B4 Z - ESP.restart();2 ?0 E8 m/ I# O8 }* M
- },[](){
; R$ r) l, d5 D9 Y4 n% \ - HTTPUpload& upload = server.upload();1 a1 a* r) C" ^, J# ~ G F9 \
- if(upload.status == UPLOAD_FILE_START){
, X x L/ T% u4 j1 z$ A a - Serial.setDebugOutput(true);
. ^0 ?6 M' e! K. G9 ~; E- C1 f - Serial.printf("Update: %s\n", upload.filename.c_str());! h3 ]' s, L6 w$ p
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;- j* O2 ]8 ~# v& u; i0 v+ j
- if(!Update.begin(maxSketchSpace)){& ?) Q8 ], E( j" p: i, u
- Update.printError(Serial);
9 ]: m" ~( r3 s0 h8 ] - }
& ^5 k. `5 N' K; F: |* N$ x* \8 d - } else if(upload.status == UPLOAD_FILE_WRITE){1 _- i; a( E- U0 M
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
! u; m) Q( Y0 N) w5 P - Update.printError(Serial);& K q7 L2 G$ g! X: `: z
- }6 F2 J! l2 F0 z5 [7 B
- } else if(upload.status == UPLOAD_FILE_END){& j5 K8 ~- C# n8 M
- if(Update.end(true)){
) o/ X: U0 z$ _' Y, }/ i - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
! P! Y& l2 Q* k& m/ f6 W - } else {
' F. U% Y' I- ~; Y/ p. S O2 T - Update.printError(Serial);; [9 N ]1 @* |
- }, A+ v5 g: |6 _0 A) ~6 Z
- Serial.setDebugOutput(false);% a6 t9 }" n- W. A6 `1 C
- }
9 d9 i8 _( X* S2 c. p - yield();
; U# X" D4 S+ b7 a C6 R1 G2 f( v9 |( D7 N - });
. L$ }# q- m6 N8 D/ b -
* ?' X# t1 _) B9 b* l+ h) f - digitalWrite(2,0);
: N! O- D/ c+ v- O- \4 l - mainAction();
. p; i& j* V, {6 Z4 Q# Y% C - if (digitalRead(0)){6 W) a& ?6 f. ~5 B, f1 N
- ESP.deepSleep(0);0 T8 ^% k6 w% U* u4 u
- } else {
: X+ i! Y8 C x. G& ?0 O. z; U - server.begin();4 d! c: {% J- Q! Q* y2 s" W$ G
- }! c3 X1 @/ T' ?0 R$ i1 `
- }1 c+ B& U5 B* K
- void loop() {/ E' _2 i8 d* I, S% |2 N. g
- server.handleClient();1 a7 M0 A/ `$ _9 Q, g
- delay(1);
% l) h' s. ^3 y - }( K8 v H$ R0 S) ]# \/ i, P
- String doGet(String url){7 C3 v! u0 ?/ A1 P7 `( S0 N
- if ((WiFiMulti.run() == WL_CONNECTED)) {
g9 E2 `, _6 m" z - HTTPClient http;
# e8 I! ^5 b. I: ^1 p - Serial.println("[HTTP] begin...");( H% F4 [9 T3 O3 m: U: D
- if (url.startsWith("https")) {2 b) Y4 c$ d8 v% V1 x0 ~$ [( X
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 r/ j6 e6 f& U+ n - } else {6 s+ C/ O# G% i5 ^6 i- O/ S
- http.begin(url);
/ y3 \5 G ~% H' z* U8 | - }2 L# Q# d) T, ^2 p, V2 H8 n
- Serial.println("[HTTP] GET...");! L% r$ b( T4 g5 |1 K
- int httpCode = http.GET();
1 w% N( f( a' L D - if (httpCode > 0) {
+ r! ^0 D$ H3 ~' u% y3 Y - Serial.printf("[HTTP] code: %d\n", httpCode);
9 x% S4 Z( |0 ?" _) G) Q) G - if (httpCode == HTTP_CODE_OK) {2 j! V- N" ~2 [* t) B/ W
- String payload = http.getString();
9 o! T& h+ P" v& {+ y s% o- z - Serial.println(payload);
& D4 w$ ?2 C- ^. b( m - Serial.print("\r\n");
$ [7 F* D9 Z* C - return payload;% D: l0 G! [9 K; L0 g& }
- }! D6 d8 N0 m @4 p$ t- V) `" U2 p5 |7 W
- } else {
9 X; S! ^+ G3 |, Y; d - Serial.printf("[HTTP] GET... failed, error: %s\n",
+ c+ A6 J, r! m( k# @ - http.errorToString(httpCode).c_str());- U0 t0 L6 u; z, M, P, [
- }
! ~7 D1 x. |: u; m! ^' y0 y( @ - http.end();
3 M7 ]* t& @6 O/ l - return "";) _0 ~" J- ~; n$ I
- }
6 \! X9 J2 ^8 E# w, w8 k" p - }: f9 u c) A1 @/ e F
- void mainAction() {
0 h4 p! D% U$ J, W# V9 G# `3 ~" F - // 发送请求
2 r' Y' t5 V6 V1 F - doGet("http://google.cn");
0 B C4 x9 `( a, z6 _! y, f' T - }
# B2 ^$ T4 ^4 z( S* u% w
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