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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)+ S6 D8 q9 v6 I R5 T+ H1 p
- #include <ESP8266HTTPClient.h>
3 F1 ?, Q. F' o$ O9 s6 Q. n - #include <ESP8266WiFi.h>
6 _6 R1 n- h+ m/ D - #include <ESP8266WiFiMulti.h>
3 I4 _, ]4 t. {+ k. b( G' @$ ]" _ - #include <ESP8266WebServer.h>, A1 E+ o' N1 B( A, v( J4 H
- #include <arduino.h>
* _ Q, O; }* j& i0 F - ESP8266WiFiMulti WiFiMulti;
. L" z% \1 S2 N - ESP8266WebServer server(80);
) Y. r+ U: A# z$ m' z4 A1 a: S0 h - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";0 e# z1 I6 D }. ?# j! m5 b+ v
- ADC_MODE(ADC_VCC);' C; g2 T: V# X1 y- [
- void setup() {
' L; }! h' q1 f4 k5 Z/ C, m+ H1 b - Serial.begin(115200);
2 c+ Y9 d* M& ^, X) K: g9 U - Serial.print("\r\n\n");0 t' b a& C, i3 E. z$ E! q
- pinMode(2,OUTPUT);6 Q4 }+ M J/ Y) W
- // WIFI
9 d& Y. S1 q* \: U$ B - WiFi.mode(WIFI_STA);
7 ]3 _' J2 V) H. G( |; d4 S - WiFi.hostname("Sparkle");
8 f. H% ]$ e4 Y! D# B' ~& M - WiFiMulti.addAP("wifi ssid", "wifi password");6 t1 S( M- S: y! W$ l% I$ k
- int tryNum = 15;+ W! i$ o7 r* v E `
- Serial.print("Connect WiFi");& A7 m. m2 ?* G$ E2 c9 ~6 [0 ]1 F
- while (WiFiMulti.run() != WL_CONNECTED) {" V. h( B+ [! n) U& b- Z
- digitalWrite(2,0);
3 V* }3 q, P: C% r& z! H) X0 P - delay(200);
" P& F) |- @# d3 C - digitalWrite(2,1);
! J" a# b+ W/ s3 z1 u) _4 G7 q - delay(300);/ w7 m5 T6 n0 z: E- f' Y0 _3 u. {# I
- Serial.print(".");
: U d9 @+ ^, t, x$ l4 j) n8 a - tryNum--;2 O# V! Y6 n! w9 Q3 W6 _- y
- if (tryNum == 0) {* Z4 V( l) N8 x# B, _
- // 1min' r8 L5 v# K3 I# e) e
- // ESP.deepSleep(60e6);
' P! @8 S. `& Z - ESP.deepSleep(0);
0 X/ E6 G; R" g& v5 S" V. G6 a1 p; { - }: E1 Y% r8 S$ b3 w
- }
9 \3 g) e6 Q) ` [ - Serial.print("\r\n");
% Z; q h/ ] m9 f+ [ - digitalWrite(2,1);
; j: f* |- R9 t7 L# F/ p I9 b# L - Serial.print("IP address : "); o3 P: Y# L8 J& {3 t# q6 _
- Serial.println(WiFi.localIP());* ], @7 I, l8 O3 U' ~4 ^
- server.on("/", HTTP_GET, [](){
# V) ]0 F- v! f$ i - server.sendHeader("Connection", "close");
( q0 M/ I4 g0 \+ s - server.send(200, "text/html", serverIndex);
8 S4 _1 M3 z1 K2 \* k - });
' R- @; K: ^8 x2 }. |' q- h" a$ L( ` - server.on("/update", HTTP_POST, [](){
t$ G; `# g" t+ H2 z' u - server.sendHeader("Connection", "close");
" g" k; T7 j' Z - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 l* b4 p; h( A# d$ b7 I - ESP.restart();
) A3 m8 t9 t! [- t- Y1 |! \: J - },[](){' _2 Y+ u/ \( w$ X, q$ ^, `. Q
- HTTPUpload& upload = server.upload();
4 _$ g$ v" e1 F5 X' X) M - if(upload.status == UPLOAD_FILE_START){
/ n* V5 q. g7 X - Serial.setDebugOutput(true);0 i) G/ Z; I0 J$ y' ~
- Serial.printf("Update: %s\n", upload.filename.c_str());' y+ e7 |6 Z. S* r/ N" w
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
/ Z5 n; `; U) m5 M - if(!Update.begin(maxSketchSpace)){ A4 F0 m5 i! q. J2 F8 y# \! J
- Update.printError(Serial);3 X! u6 F0 t, I8 L/ ]- [* O6 g
- }
1 {) ]0 i \5 T4 s5 O$ ]7 T - } else if(upload.status == UPLOAD_FILE_WRITE){
p4 W: Z$ J; _- _2 I. E# k - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
7 K2 @0 _- g# v% t9 ? T - Update.printError(Serial);
8 A3 [6 o5 X* R - }- W x7 z2 s' ?/ Z* B: d
- } else if(upload.status == UPLOAD_FILE_END){8 Q4 \) i* L+ J+ v
- if(Update.end(true)){
/ a5 E9 Z: Q# T - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);, N. { e+ p* M. N N2 z
- } else {
3 m# P0 i" h% D6 i3 Z5 f4 p - Update.printError(Serial);
3 {9 @8 z2 ~! Q- } - }: z6 H5 _" f- o! i1 V3 ^
- Serial.setDebugOutput(false);
. i8 B6 e7 a7 t& k - }
* W" @8 a) H* W5 V, ? S3 k - yield();
& Z: A: V# k$ P4 [0 P - });! H$ q3 |' I7 ~% o. [( s- G
- 6 ~3 G4 |/ I+ }) f# D1 Y
- digitalWrite(2,0);
. O' n" D' p+ P: z) `5 c$ s - mainAction();
2 O/ X' c4 `# `1 N - if (digitalRead(0)){" A- e4 G- p) v: \" d
- ESP.deepSleep(0);
8 c5 v) m) H- S& Z - } else {& N6 O! v4 |6 i) [
- server.begin();
1 H( \3 V/ n1 U' W3 z - }- i/ X5 b! S k: \; Q% ^. t
- }
4 C" i; Z0 L; h# j& V& r* C - void loop() {& \3 Q4 U4 d, ? o
- server.handleClient();
; }. W5 P5 u! u4 j4 u - delay(1);2 b2 r% @6 s+ E6 ]
- }
o7 T1 m: W* |/ c - String doGet(String url){# Q8 k2 H" \5 N# i6 m. Y
- if ((WiFiMulti.run() == WL_CONNECTED)) {
6 c7 D# Q) V; U5 v - HTTPClient http;
' G1 X8 B; f |6 |9 N - Serial.println("[HTTP] begin...");2 [! ~( ?$ L7 k7 M( v
- if (url.startsWith("https")) {
p- h- ^$ C; M6 z - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
4 I3 d- L( F9 R% X2 x% |" Q - } else {
' e8 c, g, u, E* ?1 b& X# x2 e - http.begin(url);. u' N" H" T9 H0 Q
- }
% s/ x+ |6 n9 y9 \ A% p4 I - Serial.println("[HTTP] GET...");
, l |. j8 p ~* K - int httpCode = http.GET();
3 P9 j6 A. P& H! ? - if (httpCode > 0) {
/ }' x; J3 ^$ u! {# S - Serial.printf("[HTTP] code: %d\n", httpCode);
3 W% F( Y e. s Z( N6 y0 k( w - if (httpCode == HTTP_CODE_OK) {
1 u1 `) X: I, l/ X5 D \ - String payload = http.getString();2 M: `! ?6 y3 t$ P" [6 |7 ^
- Serial.println(payload);
4 ?# Q* \6 ^ ^. D* y5 h - Serial.print("\r\n");- `9 I, R; \% _
- return payload;
8 N2 F2 j; f( J% g% T2 ^0 Q+ i* ~# R - }
# ^% ^( g/ C( o9 t( ?4 d2 E% | - } else {. g+ g% y$ @, p. d6 k
- Serial.printf("[HTTP] GET... failed, error: %s\n",
! z" o$ b. r) E8 X; [+ ] - http.errorToString(httpCode).c_str());& e. j* X9 n* H0 K8 n% Q
- }9 o' @# Y. L- {5 v6 G
- http.end();" a( I+ X- M, l/ B% u9 k
- return "";
P, v# I) B, i. W8 _ - }
. v. j& ]- q* U r- {; T - } E! z8 U- m4 k% h
- void mainAction() {
# K' ~& B- a$ ]( d6 ~ - // 发送请求8 L9 e# I! G( N% @, u) `: Z0 U, j
- doGet("http://google.cn");
# _6 g; `2 O6 h* ]1 w - }( h+ v! d# Y2 c, ^+ C
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