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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)" c0 @8 _: I; ?: ]6 e+ I
- #include <ESP8266HTTPClient.h>1 [4 E. ~ D: Z. r5 V% Z% Z
- #include <ESP8266WiFi.h>
3 f3 r/ F+ F( Y6 \% j8 L6 x7 @- l - #include <ESP8266WiFiMulti.h>6 \& b3 T6 j+ [# k# g+ f* {
- #include <ESP8266WebServer.h>
: j! M! u9 o) k0 h - #include <arduino.h>
, R1 q- `7 F; U. @7 @- Q - ESP8266WiFiMulti WiFiMulti;3 l/ i8 @) ]7 O
- ESP8266WebServer server(80);
; h7 z V0 w4 ^/ Q - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
# n- w# n0 J( R2 w - ADC_MODE(ADC_VCC);4 j$ A' z- ` r; j W: l K) v
- void setup() {. K% e% d, H" m0 V# s* n
- Serial.begin(115200);" d0 b* l& u7 l3 x4 N9 e9 z
- Serial.print("\r\n\n");
2 D" z( N1 `/ m. Y - pinMode(2,OUTPUT);
8 P: U. D' Y5 ~6 S0 C - // WIFI1 {2 n' r# s" {2 }4 Q7 f3 E: m
- WiFi.mode(WIFI_STA);
- N8 l- ?! T) R. _0 q$ u - WiFi.hostname("Sparkle");
8 }& w! p M" T1 p - WiFiMulti.addAP("wifi ssid", "wifi password");! }. e0 x$ k, x
- int tryNum = 15;
4 p+ X; F; h& E. @* O8 N - Serial.print("Connect WiFi");
, ^9 v: T; ?2 C# Q - while (WiFiMulti.run() != WL_CONNECTED) {0 `: v: V% {/ S: \' @" T1 K( S
- digitalWrite(2,0);
; u) E& V0 @, d' j - delay(200);! D. [# }+ ]3 ]: g6 e: m, V
- digitalWrite(2,1); _, W' M# P$ Z9 j
- delay(300);8 B3 L" h! [6 H$ ?4 q$ Z
- Serial.print(".");1 a3 V- p* ~& K5 O; i1 T6 n2 {0 I
- tryNum--;
5 m y( w7 _+ ]9 {3 D2 y - if (tryNum == 0) {
1 j3 T; e# d. ?) J% y/ l+ U - // 1min
. ~2 N4 h8 M- i& n* i* o3 c - // ESP.deepSleep(60e6);" P9 c. Y/ |$ y8 W$ b) |0 A, L% @
- ESP.deepSleep(0);4 s: \ r1 \8 P8 v
- }. |5 _2 p( z" D5 G
- }- N2 _( d; k" I2 w5 @" O
- Serial.print("\r\n");6 o% o6 C. }" {# |; G
- digitalWrite(2,1);
/ ^* n+ o0 U$ a: Q - Serial.print("IP address : ");2 r6 |3 {) C/ p3 d& `5 O
- Serial.println(WiFi.localIP());
3 Z1 T4 k. d) a3 b; x& I - server.on("/", HTTP_GET, [](){
! ^) A% l$ ?" W# G! ] - server.sendHeader("Connection", "close");
. y1 M3 F& M" C) O - server.send(200, "text/html", serverIndex);* o x" w6 U7 v! ~9 N
- });
" @# v" P- ~# _! b - server.on("/update", HTTP_POST, [](){
# R q" ]( g4 z6 O3 U - server.sendHeader("Connection", "close");0 I& r' t0 t. |3 [
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
" ^/ k A5 g5 w - ESP.restart();
) u2 C0 o6 s- s A - },[](){
. f1 z' m5 ^/ j; t# n - HTTPUpload& upload = server.upload();/ z( r$ T |0 ^/ N1 R
- if(upload.status == UPLOAD_FILE_START){7 p* I) X+ ?4 X: X, X
- Serial.setDebugOutput(true);
+ H1 C, w) z' Y - Serial.printf("Update: %s\n", upload.filename.c_str());
. o9 U8 [1 v2 q. A0 \! z$ a2 H2 ` - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;; n5 E3 E& c" A3 Y3 U5 a4 W& g
- if(!Update.begin(maxSketchSpace)){
# @9 D; z! |) E2 T( L/ d - Update.printError(Serial);" X- N6 E [% d6 M$ d
- }
& ?# a/ [) M. e0 a* a1 z - } else if(upload.status == UPLOAD_FILE_WRITE){! I9 H5 J5 h9 K+ b2 b1 H! N
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){: a" w6 Z1 f9 x9 a. `& V
- Update.printError(Serial);/ i, u: u! m9 ]
- }9 _) ?! o1 e9 W6 b; \$ o7 G
- } else if(upload.status == UPLOAD_FILE_END){& J* g- K2 h# u" K
- if(Update.end(true)){
+ C0 M. ~: n& s - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);5 N* O, ]! t) @3 i" a
- } else {& T+ T* j/ B. ~. v( z. C9 U
- Update.printError(Serial);
8 v/ d! z+ I Q0 g6 p - }! B2 x1 M6 c5 s9 s0 a& y
- Serial.setDebugOutput(false);9 k+ A, w" W6 P% S; r7 ^
- }; `3 L7 t& g5 ]) c. D7 `2 B
- yield();
* `. `! _- S! O5 ?) e - });
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- digitalWrite(2,0);# Y! y1 i: ]4 |0 g3 F
- mainAction();
4 z7 O4 D0 a) d5 B) X - if (digitalRead(0)){# u' a. U$ B+ i) j: a
- ESP.deepSleep(0);- C* T L. x6 X1 U& t3 i
- } else {
]- i- S6 U. L# L8 c+ U P) E - server.begin();1 z1 L" w8 Y% q5 E, T
- }$ _1 L2 o) f c4 V
- }9 E: K# a1 Z2 {7 H5 R6 D
- void loop() {) p. z! j( Q7 w
- server.handleClient();( k. i2 s' y# D& ?2 P! Q8 l: v2 ]
- delay(1);
4 q: E' a" r/ U% b - }
9 n0 a! [- d* h' w- f& M+ U - String doGet(String url){6 G2 S! k/ a* v1 s! _+ {+ e
- if ((WiFiMulti.run() == WL_CONNECTED)) {4 q0 ]% b c* m4 `. v0 p7 K
- HTTPClient http;
, b" k/ y4 A* [2 i7 S - Serial.println("[HTTP] begin...");
7 Y. f, [3 T4 ] A$ [* k - if (url.startsWith("https")) {" i r0 j+ h8 a* v0 L
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
! x9 W( E$ H9 q G, I e2 Z - } else {
$ y# H9 P5 @& I. t - http.begin(url);! m% n& z# d" P- G
- }
1 }8 I2 r" V0 F' [; I3 H - Serial.println("[HTTP] GET...");
# V, | O% Q. R$ F. x! V; H! U - int httpCode = http.GET();0 l" M- j7 [# M9 a
- if (httpCode > 0) {
7 _: C: e" O" ]3 Z# v+ h4 P - Serial.printf("[HTTP] code: %d\n", httpCode);
* I: G: `6 Z0 L5 \2 ~$ u - if (httpCode == HTTP_CODE_OK) {* Z: Q4 g! d+ ?) S, T6 D- y
- String payload = http.getString();
4 K8 u, f' b( y0 }& `8 z7 Z - Serial.println(payload);: ?4 L) t! f2 `9 k h" v# G
- Serial.print("\r\n");
$ q4 f* e- M2 G6 N4 L - return payload;
# D2 `' I8 ?8 T( G5 r) m - }
4 p3 d0 l) x% N _ - } else {
' Q0 t/ `9 }1 Y' c1 D - Serial.printf("[HTTP] GET... failed, error: %s\n",
* v# r% P* M3 _8 E5 ?- } - http.errorToString(httpCode).c_str());$ |$ X5 b- Z% T$ Y
- }" }+ e3 D: g( E# G& L- M! p
- http.end();* _4 J9 a L$ k8 o% ^
- return "";
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- }
! ]+ D# c: q/ W( _ - void mainAction() {5 L2 A* c+ Z: d& r
- // 发送请求( g4 z$ i. ~& g* N3 j7 {, X
- doGet("http://google.cn");
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